n.[C]

1. 钉子
   The nail has been pulled out.

   那只钉子拔出来了。

2. （手，脚的）指甲；（鸟，兽的）爪
3. （鸟禽）喙上的硬甲壳

vt.

1. 钉，将……钉牢；使固定[O]
   We had the lids nailed on the boxes.

   我们给箱子钉上盖子。

2. 使（目光，注意力等）集中于[（+on/to）]
   Mr. Hunter kept his eyes nailed on the car in front of his.

   亨特先生目不转睛地盯着他的前面一辆车子。

3. 【口】抓住，捕获
   We finally nailed the thief.

   最后我们把小偷抓住了。

4. 【口】揭露，揭穿
   It did not take us long to nail that lie.

   没多久我们就把谎言揭穿了。

5. 击，打
6. 【棒】把（跑垒者）刺杀出局

n.

1. a small metal spike with a broadened flat head, driven into wood to join things together or to serve as a hook.
2. a horny covering on the upper surface of the tip of the finger and toe in humans and other primates.
   ▸a hard growth on the upper mandible of some soft-billed birds.
3. a former measure of length for cloth, equal to 2¹⁄₄ inches.
4. a former measure of wool, beef, or other commodity, roughly equal to 7 or 8 pounds.

v.

1. fasten with a nail or nails.
2. informal detect or catch (someone, especially a suspected criminal).
3. informal (in sport) strike (a ball) forcefully and successfully.
   ▸Baseball  (of a fielder) put (a runner) out by throwing to a base.
   ▸chiefly N. Amer. (of a player) defeat or outwit (an opponent).
4. (nail someone down) elicit a firm commitment from someone.
5. (nail something down) identify something precisely.