I've had a better time than they had.

　　我比他們有好時(shí)光。

　　This had a better effect.

　　這一罵倒有了好效果。

　　It would be better if we had a better knowledge of the machine.

　　要是我們對(duì)這臺(tái)機(jī)器了解多一點(diǎn)的話，那就更好了。

　　Patients with smaller value of PI had a better prognosis.

　　預(yù)后指數(shù)值小的患者預(yù)后好。

　　But now I had a better idea.

　　現(xiàn)在我有個(gè)更好的主意。