nut是什么意思？

The firm shelled fruit of some trees and bushes are called nuts. Some nuts can be eaten.

A nut is a thick metal ring which you screw onto a metal rod called a bolt. Nuts and bolts are used to hold things such as pieces of machinery together.

If you describe someone as, for example, a football nut or a health nut, you mean that they are extremely enthusiastic about the thing mentioned.

If you are nuts about something or someone, you like them very much.

If you refer to someone as a nut, you mean that they are mad.

If you say that someone goes nuts or is nuts, you mean that they go crazy or are very foolish.

A man's testicles can be referred to as his nuts .

Your head can be referred to as your nut .

If someone goes nuts, or in British English does their nut, they become extremely angry.

If you talk about the nuts and bolts of a subject or an activity, you are referring to the detailed practical aspects of it rather than abstract ideas about it.

If you think someone is difficult to deal with, you can say they are a tough nut or a hard nut .

If you say that something is a hard nut to crack or a tough nut to crack, you mean that it is difficult to do or to understand.