had better 后跟什么 had better怎么用

1、had better/'d better+动词原形是固定搭配 表示最好做某事 用于会话中，对应该做的事，尤指该避免的问题，提出坚定的劝告。 注意：had better/'d better后用不带to的不定式。
2、had better do sth 最好做某事
3、例如：you had better refrigerate the beer before drinking it.
4、喝啤酒前你最好先把它冷冻一下。