You had better own up.
你还是招了的.好。
Don't send anyone else; you had better go yourself.
这事甭支别人了,你自个儿去吧。
I'm not clear about this matter, so I had better keep quiet.
我对这个问题不清楚,只能不赞一词。
This fellow is very crafty; we had better be on our guard.
这个家伙诡计多端,我们可得小心点儿。
I had better say a few words by way of explanation.
我最好以解释的方式说几句话。