n.[C]

1. 坚果；坚果仁
   We can crack nuts in the nutcrackers.

   我们可以把坚果放在坚果钳里轧碎。

2. 难事；难题，难对付的人
   Painting the ceiling was a tough nut to crack.

   油漆天花板是件难事。

3. 螺母，螺帽
4. 【口】疯子；傻瓜；怪人
   She's a movie nut.

   她是电影迷。

5. 【口】狂热者[P]，……迷
6. 【口】脑袋
7. 【美】【粗】睾丸[P]

vi.

1. 采坚果，拾坚果

n.

1. a fruit consisting of a hard or tough shell around an edible kernel.
   ▸the hard kernel of such a fruit.
2. a small flat piece of metal or other material, typically square or hexagonal, with a threaded hole through it for screwing on to a bolt.
   ▸the part at the lower end of a violin bow with a screw for adjusting the tension of the hair.
3. informal a crazy or eccentric person.
   ▸an obsessive enthusiast or devotee.
4. informal a person's head.
5. a small lump of coal.
6. (nuts) vulgar slang a man's testicles.
7. the fixed ridge on the neck of a stringed instrument over which the strings pass.

v.

1. Brit. informal butt with one's head.
2. [usu. as noun nutting] archaic gather nuts.