| 单词 | 三龄鲑 |
| 释义 | 〔smolt〕A young salmon at the stage intermediate between the parr and the grilse, when it becomes covered with silvery scales and first migrates from fresh water to the sea.幼鲑，三龄鲑：一种小的大马哈鱼，处于幼鲑和首次溯河产卵的鲑之间的阶段，此时它身上开始覆满了银鳞，并且首次从淡水游向海洋 |
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