had better(best) 的用法

had better 和 had best 意思为 “最好(做某事)”。 它们的用法相似。had 常可以紧缩为'd。
You'd better set off before it gets dark. 你最好在天黑之前就出发。
You had better stop quarreling. 你们最好别吵了。
Had we better take some food with us? 我们是不是带点食物比较好？
We had best listen to his idea first. 我们最好先听听他的意见。