| 复合形式: | 
| the Adriatic Sea nnoun: Refers to person, place, thing, quality, etc.  |  (body of water east of Italy) (意大利东部水域) | 亚得里亚海 
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| the Aegean Sea nnoun: Refers to person, place, thing, quality, etc.  |  (part of Mediterranean Sea) (地中海的一部分) | 爱琴海 
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| air-sea rescue nnoun: Refers to person, place, thing, quality, etc.  |  (emergency service at sea) | 海空救援  hǎi kōng jiù yuán | 
| at sea advadverb: Describes a verb, adjective, adverb, or clause--for example, "come quickly," "very rare,"  "happening now," "fall down."  |  literal (on the open water) (本义) | 在大海上,在广阔的水面上 
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|   | The old sailor loves to recount his adventures at sea. | 
at sea,  all at sea adjadjective: Describes a noun or pronoun--for example, "a tall girl," "an interesting book," "a big house."  |  figurative (disorientated) | 茫然的  máng rán de  | 
|   |   | 不知所措的  bù zhī suǒ cuò de  | 
|   |   | 迷茫的  mí máng de  | 
|   | Clara was all at sea in the advanced calculus class. | 
| the Baltic Sea nnoun: Refers to person, place, thing, quality, etc.  |  (body of water north of Central Europe) (中欧北部水域) | 波罗的海 
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| burial at sea nnoun: Refers to person, place, thing, quality, etc.  |  (sailor's funeral) | 水手的葬礼  shuǐ shǒu de zàng lǐ | 
|   |   | 海葬  hǎi zàng | 
|   | My grandfather had an honoured burial at sea. | 
| burial at sea nnoun: Refers to person, place, thing, quality, etc.  |  (disposal of ashes in ocean) | 海葬  hǎi zàng | 
| by sea advadverb: Describes a verb, adjective, adverb, or clause--for example, "come quickly," "very rare,"  "happening now," "fall down."  |  (via boat or ship) | 由海路  yóu hǎi lù | 
|   | I hate travelling by sea because I get seasick easily. | 
| the Caribbean Sea nnoun: Refers to person, place, thing, quality, etc.  |  (part of Atlantic Ocean) | 加勒比海  jiā lè bǐ hǎi | 
|   | I enjoyed a cruise in the Caribbean Sea, visiting Puerto Rico, Barbados and the American Virgin Islands. | 
| Caspian Sea nnoun: Refers to person, place, thing, quality, etc.  |  (large inland sea) (位于欧亚交界处) | 里海 
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| Dead Sea nnoun: Refers to person, place, thing, quality, etc.  |  (body of salt water in Middle East) | 死海  sǐ hǎi | 
|   | The Dead Sea is a huge salt lake between Israel and Jordan lying 422 meters below sea level. | 
| deep sea nnoun: Refers to person, place, thing, quality, etc.  |  (lowest ocean layer) | 深海  shēn hǎi | 
|   | Plants cannot grow in the deep sea because there is no sunlight. | 
| deep-sea n as adjnoun as adjective: Describes another noun--for example, "boat race,"  "dogfood." |  (relating to deeper parts of the sea) | 深海的  shēn hǎi de | 
| deep-sea diver nnoun: Refers to person, place, thing, quality, etc.  |  ([sb] who scuba dives at great depths) | 深海潜水员  shēn hǎi qián shuǐ yuán | 
|   | Deep-sea divers are trying to repair the leaking oil-pipe. | 
| deep-sea diving nnoun: Refers to person, place, thing, quality, etc.  |  (scuba diving at great depths) | 深海潜水  shēn hǎi qián shuǐ | 
|   | Deep-sea diving opens a whole new universe to scientists, engineers and archaeologists. | 
| feel seasick vi + adj |  (on boat: suffer motion sickness) | 晕船  yūn chuán | 
|   | I prefer to travel by plane as I usually feel seasick on the ferry. | 
hardtack,  sea biscuit nnoun: Refers to person, place, thing, quality, etc.  |  (hard unsalted biscuit) | (未加盐的)硬饼干  wèi jiā yán de yìng bǐng gān | 
|   |   | 压缩饼干  yā suō bǐng gān | 
| Mediterranean Sea nnoun: Refers to person, place, thing, quality, etc.  |  (sea) | 地中海  dì zhōng hǎi | 
| North Sea nnoun: Refers to person, place, thing, quality, etc.  |  (part of Atlantic Ocean) (大西洋东北部) | 北海 
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| put out to sea v |  (leave land, embark) | 出航  chū háng | 
|   |   | 起航  qǐ háng | 
|   |   | 出海  chū hǎi | 
|   | We put to sea expecting an easy voyage, but the storm quickly forced us back to port. | 
| put to sea v exprverbal expression: Phrase with special meaning functioning as verb--for example, "put their heads together," "come to an end." |  (ship: leave land) | 出海  chū hǎi | 
|   | We'll put to sea again once the sails have been repaired. | 
| rough sea nnoun: Refers to person, place, thing, quality, etc.  |  (stormy or choppy sea) | 风大浪急的海面  fēng dà làng jí de hǎi miàn | 
|   | Rough seas prevented his return from Capri to Naples. | 
| sea bass nnoun: Refers to person, place, thing, quality, etc.  |  (marine fish) (一种海鱼) | 黑鲈,海鲈鱼 
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|   | My favourite type of fish is sea bass. | 
| sea bream nnoun: Refers to person, place, thing, quality, etc.  |  (fish off European coasts) | 鲷鱼  diāo yú | 
| sea bream nnoun: Refers to person, place, thing, quality, etc.  |  (porgy) | 鲷类 
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|   |   | 鲷鱼类 
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| sea breeze nnoun: Refers to person, place, thing, quality, etc.  |  (gentle wind blowing in from the sea) | 海风  hǎi fēng | 
|   | There's a constant sea breeze in California which makes the heat tolerable. | 
| sea captain nnoun: Refers to person, place, thing, quality, etc.  |  (commander of a ship) | 船长  chuán zhǎng  | 
|   | My grandfather was a sea captain, the master of a merchant ship. | 
| sea cow nnoun: Refers to person, place, thing, quality, etc.  |  (manatee) | 海牛  hǎi niú | 
|   |   | 海象  hǎi xiàng | 
|   | In Costa Rica they take good care to preserve the sea cows. | 
| sea dog nnoun: Refers to person, place, thing, quality, etc.  |  figurative (veteran sailor) (比喻) | 老水手  lǎo shuǐ shǒu | 
|   | Captain Ahab, whose face was scarred by lightning, was the ultimate sea dog. | 
| sea level nnoun: Refers to person, place, thing, quality, etc.  |  (sea's surface height) | 海平面  hǎi píng miàn | 
|   | One third of the Netherlands is at or below sea level.  Global warming is causing sea levels to rise worldwide. | 
| sea-level n as adjnoun as adjective: Describes another noun--for example, "boat race,"  "dogfood." |  (at sea's surface height) | 海平线的 
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| sea lion nnoun: Refers to person, place, thing, quality, etc.  |  (large seal) | 海狮  hǎi shī | 
| sea mist nnoun: Refers to person, place, thing, quality, etc.  |  (thin fog coming in off the sea) | 海雾  hǎi wù | 
| sea otter nnoun: Refers to person, place, thing, quality, etc.  |  (marine mammal) | 海獭  hǎi tǎ | 
|   | Sea otters are amazingly agile swimmers, but rather clumsy on land. | 
| sea salt nnoun: Refers to person, place, thing, quality, etc.  |  (salt extracted from the sea) | 海盐  hǎi yán | 
|   | I always cook with sea salt. | 
| sea shell nnoun: Refers to person, place, thing, quality, etc.  |  (outer casing of a marine mollusc) | 贝壳  bèi ké | 
| sea turtle nnoun: Refers to person, place, thing, quality, etc.  |  (aquatic tortoise that lives in the ocean) | 海龟  hǎi guī  | 
| sea urchin nnoun: Refers to person, place, thing, quality, etc.  |  (spiky round sea creature) | 海胆  hǎi dǎn | 
|   | He stepped on a sea urchin and the spines got stuck in his foot. | 
seabird,  sea bird nnoun: Refers to person, place, thing, quality, etc.  |  (bird inhabiting marine areas) | 海鸟 
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|   | As the boys approached the beach, they could hear seabirds calling. | 
seafront,  sea front,  sea-front nnoun: Refers to person, place, thing, quality, etc.  |  mainly UK (land alongside the shore) | 海滨区  hǎi bīn qū | 
|   |   | 海岸区  hǎi àn qū | 
|   |   | 面海地带  miàn hǎi dì dài | 
|   | The seafront was damaged by the strong storm. | 
seafront,  sea-front n as adjnoun as adjective: Describes another noun--for example, "boat race,"  "dogfood." |  (alongside the shore) | 海滨  hǎi bīn | 
|   |   | 海边  hǎi biān | 
seagull,  sea gull nnoun: Refers to person, place, thing, quality, etc.  |  (marine bird) | 海鸥  hǎi ōu | 
|   | Lisa stood on the shore, watching the seagulls swoop over the water. | 
seahorse,  sea horse nnoun: Refers to person, place, thing, quality, etc.  |  (small horse-like fish) | 海马  hǎi mǎ | 
|   | Some seahorses are no bigger than your finger. | 
| seasick adjadjective: Describes a noun or pronoun--for example, "a tall girl," "an interesting book," "a big house."  |  (nauseous from boat travel) | 晕船的  yùn chuán de | 
|   | Evelyn was seasick on the boat. | 
seawall,  sea wall,  sea-wall nnoun: Refers to person, place, thing, quality, etc.  |  (groyne: wave barrier) | (海岸)防波堤  hǎi àn fáng bō dī | 
|   |   | 护岸堤防  hù àn dī fáng | 
|   |   | 海堤  hǎi dī | 
starfish,  sea star nnoun: Refers to person, place, thing, quality, etc.  |  (star-shaped sea creature) | 海星  hǎi xīng | 
|   | We saw different kinds of starfish on the beach. |