例句：

　　We ate catfish at a local restaurant.

　　我們?cè)诋?dāng)?shù)氐囊患覅⒂^吃了鯰魚。

　　I brought you some catfish.

　　給你帶了點(diǎn)鯰魚。

　　It is extracted from the exoskeletons of crayfish.

　　它是從小龍蝦的殼里提取出來的。

　　The other day, my boyfriend and I went to eat crayfish.

　　前幾日，我和男友出去吃小龍蝦。