This, Mr Hocking points out in Polar Biology, indicates that these teeth are used to chomppenguins and other seals.
霍金先生在《极地生物》杂志上指出,这表明豹海豹利用这些牙齿来撕咬企鹅和其他海豹。
But since there is no such wear on the sharp and delicate postcanines, he believes thatalthough these triangular rear teeth look fierce, when closed they form a sieve that is theperfect size for filtering.
但是,由于在锋利而精致的犬齿后齿上并没有发现磨损的情况,他认为尽管这些三角形的后槽牙看上去非常凶狠,但是当咬合时,它们可以充当一个对于过滤事物来说其尺寸可谓完美的筛子。
Ideal dentistry, if you like, for a mixed diet.
如果你乐意,这是一套进行混合膳食的理想的牙科学。
词语解释
1.food chain 食物链
Officials also say it never entered the human foodchain.
官员称它从未进入人类的食物链当中。
Mercury accumulates as it works its way up thefood chain.
汞会随着食物链上的食物传递而积聚。
2.made up of 由组成,由构成
The fill made up of basket loads of different colored clay.
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