歼20真没有机炮吗:You'd better __this word up in the dictionary.

You'd better 关于 You'd better you'd better to do / you'd better do 有什么区别哇？ 是you 'd better not do 还是you 'd better not to do you'd better have the colour TV set------- you'd better watch yourself. 的意思 填词You'd better ______(拜访)him You'd better __this word up in the dictionary. You'd better do sth.中You'd 全称是什么 YOU’D BETTER DO IT NOW