吃透英语课本，提升在校竞争力
pl. 磷虾
They often eat the tiny animals called krill, but they don't eat big fish.
它们主要以一种名为磷虾的小型动物为食，但不吃大鱼。
Thousands of penguins have already died from a shortage of krill.
数千只企鹅因为磷虾匮乏已经死亡。
Krill are a crucial part of the ocean's food chain.
磷虾是海洋食物链中重要的一环。
已安全检测