Translation of "yes" into Chinese (Traditional)

是的

IPA : /jɛs/

Why did Tom say yes?

湯姆為什麼說是？

Tom thinks there's a good chance that Mary will say yes.

湯姆認為瑪麗很有可能答應。

He said "yes".

他說"是".

Yes, I met her in the library yesterday.

是的,我昨天在圖書館遇見了她。

Was that a yes?

那是嗎？