You had better own up.
你還是招了的好。
Don't send anyone else; you had better go yourself.
這事甭支別人了，你自個兒去吧。
I'm not clear about this matter, so I had better keep quiet.
我對這個問題不清楚，只能不贊一詞。
This fellow is very crafty; we had better be on our guard.
這個家伙詭計多端，我們可得小心點兒。
I had better say a few words by way of explanation.
我最好以解釋的方式說幾句話。