new
fish ladder的英文翻译是什么意思，词典释义与在线翻译：
英英释义
Noun:
-
a series of ascending pools providing a passage for salmon to swim upstream past a dam
fish ladder的用法和样例：
例句
- Then, to help the salmon swim upstream to deposit their eggs, they build special fish ladders up the smaller dams and rapids.
同时，为帮助鲑鱼逆水，游回产卵的地方，他们在较小的水坝和急流上建设鱼梯。
