Stand the fish tank on a firm base.
把魚缸放在牢固的基座上。
The fish return to the river as adults in order to breed.
這種魚長(zhǎng)成以后回到河中產(chǎn)卵。
This fish has a lot of bones in it.
這種魚多刺。
How many fish did you catch?
你捕到幾條魚？
The eyes of some fish have a greater sensitivity to light than ours do.
有些魚的眼睛對(duì)光比我們敏感。