Keratin is the major protein in hair and nails . 角蛋白是毛发和指甲中的主要蛋白质。
Nails are constantly regenerating . 指甲不断地新生。
His nails were polished . 他的指甲是涂过油的。
Her finger-nails were blood red . 她指甲鲜红。
This time i wept and roared like a wicked child, tearing up the turf with my nails . 这一次，我哭啊吼地活像一个顽皮的孩子，用我的指甲拼命地挖着草地。
The little man's eyes were fastened on his nails, and, with an appearance of enjoyment, he began to bite them . 矮个子的眼光盯着自己的指甲，然后，怡然自得地开始咬指甲了。
Surgical procedures such as removing wattles, combe, or the toenails of certain toes must be done properly by one trained in the procedure . 手术，如去肉垂、冠或某些脚指甲，都必须由训练有素的人去做。
The effect is easy to observe on a smooth, flat-black material(eg. poster-painted paper), but you can see it on a fingernail or a worn coin as well . 在一个光滑的、平而黑的材料上（例如招贴画的纸）容易看到这个效应，但是也可以在指甲上或旧的硬币上看到。
One of his toenails was growing in ( to the flesh ) 他的一个脚指甲长到肉里去了。
Don ' t go crazy with colors on face and nails 不要过于执着于脸部和指甲的色彩。
