had better是什么意思，had better怎么读
- They had better be good good friends .
- He had better not remain here .
- We had better wake up .
- We had better have got that job .
- Perhaps you had better unpack your things .
- You had better go back .
- She had better not go .
- We had better get used to it .
- You had better realize at once .
- They had better hope those forecasts hold .