除非你能提供证件否则我不会让你进去的。

I won't let you in unless you can provide a proper ID.

youdao

除非你能睡个好觉，否则一两晚之后，你就会无法专注，无法落实计划，也无法保持动力。

Unless you can sleep well, you will lose the ability to focus, plan and stay motivated after one or two nights.

youdao

当你在学校食堂吃午饭的时候，你可能会感到孤独，除非你能找到一个人一起吃午饭。

When you are in your school dining hall during lunchtime, you may feel lonely unless you can find someone to have lunch with.

youdao

You can't take the exam unless you're registered for the class, and we need to make sure we can verify that.

否则你是不能参加这次考试的,除非你注册了这门课，而我们需要确定你能证实这一点。

麻省理工公开课 - 化学原理课程节选

Maybe other principles of hermeneutics will place much more stress on innovation or novelty or difference, but you're not sure people can understand unless they share a great deal of common ground."

也许诠释学的其他原则更强调,创新，独树一帜，与众不同，但你不能保证人们都能理解,除非他们有很多相同之处“

耶鲁公开课 - 文学理论导论课程节选

That's a very large number, it's all relative, so you don't necessarily know it's large without me telling you or giving you other ions to compare to, but chlorine does have a very large affinity, meaning it's really likes getting an electron and becoming a chlorine ion.

这是个非常大的数值，这种数值都是相对的，因此你不一定能知道这是非常大的,除非我告诉你或给你另外离子数值作为参考，但是氯确实有很高的电子亲和能，这意味着它非常乐意得到一个电子,而变成一个氯离子。

麻省理工公开课 - 化学原理课程节选