nail

• Why are you always biting your nails ?
  你为什么老是咬指甲？
• He has scratched his hand on a nail .
  他的手让钉子刮破了。
• You should nail down the agreement in october .
  你应在十月份就把协定确定下来。
• Her skirt got caught on a nail .
  她的裙子给钉子挂住了。
• Could you help me drive these nails into the wall ?
  你能帮我把这些钉子钉入墙壁吗？
• The tyre is flat -- the nail has gone right through .
  轮胎瘪了钉子把它扎透了。
• 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。
• Her dress caught on a nail .
  她的衣服让钉子给钩住了。
• Together we could nail them .
  我们可以一起把他捉住。
• Nails are constantly regenerating .
  指甲不断地新生。