| 单词 | 溯河产卵 |
| 释义 | 〔grilse〕A young Atlantic salmon on its first return from the sea to fresh or brackish waters.溯河产卵时期的鲑鱼：第一次从海中返回淡水或微咸的水中的幼小的大西洋鲑鱼〔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〔steelhead〕The anadromous variety of rainbow trout, being larger and having darker spots than the freshwater variety.硬头鳟：彩虹鳟中的溯河产卵海鱼，较淡水种类体型大，斑点颜色淡〔anadromous〕Migrating up rivers from the sea to breed in fresh water. Used of fish.溯河产卵的：从海洋向上游到河流中，并在淡水中产卵的。用于指鱼 |
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