had better (指现在或最近的将来)
It looks like rain.If she's going out, she had better take an umbrella.
If he has a toothache, he had better see a dentist.
If you don't feel well, you'd better stay home and take a good rest.
You had better not be late for the interview. 你最好面试不要迟到。
You had better get there ten minutes earlier.
You'd better not argue with your boss. 你最好不要跟你老板争辩。
We had better mind our own business. 我们最好不要管闲事。
You'd better not go out alone after midnight.