基本解释最好做某事（had是have的过去式和过去分词）词组短语短语had d better do sth 最好做某事you had better do sth 你最好做某事had better no do sth 最好不做某事had better not do sth 最好别做某事;最好不要做某事;最好不做某事sb had better do sth 某人最好干什么