不及物动词

名词

1. (中间部分)下垂，下弯，下陷
When something sags, it hangs down loosely or sinks downwards in the middle.

2. (身体某部位)松弛，下垂
When part of someone's body begins to sag, it starts to become less firm and hang down.

3. 消衰;委顿;萎靡
To sag means to become weaker.

1. a shape that sags

e.g. there was a sag in the chair seat

Synonym: droop