| 复合形式: | 
| toughen up viintransitive verb: Verb not taking a direct object--for example, "She jokes." "He has arrived."  |  informal (get stricter or harsher) (非正式用语) | 变严厉,更为严厉 
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|   | We are going to toughen up the rules around here, no more goofing off. | 
| toughen up vi phrasalphrasal verb, intransitive: Verb with adverb(s) or preposition(s), having special meaning and not taking direct object--for example, "make up" [=reconcile]: "After they fought, they made up." |  informal ([sb]: be resilient) (非正式用语) | 变得更坚韧  biàn de gèng jiān rèn | 
|   | I'll have to toughen up if I don't want to go home crying every day. | 
| toughen up vtrtransitive verb: Verb taking a direct object--for example, "Say something." "She found the cat."  |  informal (make more resilient) (非正式用语) | 使更坚韧  shǐ gèng jiān rèn | 
|   | He tried to prepare his children for life by toughening them up. | 
| toughen [sth] up vtr phrasal sepphrasal verb, transitive, separable: Verb with adverb(s) or preposition(s), having special meaning, divisible--for example, "call off" [=cancel], "call the game off," "call off the game." |  informal ([sth]: make stricter) | 严抓 
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|   |   | 使...更严格 
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|   | We are going to toughen up the rules. No more goofing off! |