一日一句【27】on condition that

on condition that

示例：
Jack will do the job on condition that he is well paid.
杰克愿意干这活儿，条件是报酬必须优厚。

On condition that相当于if或providing，其中的that不能省略。意为“只在……条件下：如果”。

John will go on condition that Mary is invited too.
约翰愿意去，条件是玛丽也得到邀请。

You can visit the patient on condition that you only stay five minutes.
如果你只呆五分钟，就让人探视病人。

You can use my car on condition that you return it tomorrow.
我的车子可以借给你，条件是明天必须归还。

He will be allowed to travel to Europe on condition that he gets A in all his exams.
如果他所有的考试成绩都得A，就允许他去欧洲旅行。