而是

我要的不是茶，而是咖啡。

wǒ yào de bù shì chá， ér shì kā fēi。

What I want isn't tea, but coffee.

他们不是在打架，而是在排练戏剧。

tā men bù shì zài dǎ jià， ér shì zài pái liàn xì jù。

They aren't quarreling, but are rehearsing a play.

奥运会最重要的不是获胜，而是参与。

Ào yùn huì zuì zhòng yào de bù shì huò shèng， ér shì cān yù。

The most important thing in the Olympic Games is not winning but taking part.