供热管道伸缩器:You had betterd 缩写形式是什么?

You had betterd 缩写形式是什么? If you had ten apples 从句you had been gone You cannot lose what you never had “YOU HAD BETTER”的缩略形式 谁知道where had you gone这首歌 Cause you had me branded from the start you had better( )fire.it's dangerous. You had better go there on foot.(作否定回答) You had two English chasses this morning,___?