每日英语俚语156: 食物链 (mp3和文本下载)
2017-03-26来源:和谐英语
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food chain
食物链
There is no top to the food chain, as plants take nutrients from the strongest predators.
食物链并没有尽头,就像植物会从最强壮的肉食动物身上摄取养分。
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