I will wait for you on the condition that you promise to come.
我會等你但條件是你答應(yīng)過來。
We all believe you on the condition that you tell us the truth.
我們都會相信你,條件是你告訴我們真相。
I can lend you the MP3 on the condition that you return it on time.
我可以把MP3借給你,但條件是你必須限期歸還。