Let me start with the one with differentials that hopefully you kind of understood yesterday, but if not here is a second chance.
第一种就是昨天讲的微分法，希望你们能明白，不明白也没关系，现在可以认真听一下。
If not, here are the six crucial questions that you must ask yourselves before you pop the question.
如果还没有，下面这六个关键问题是你在准备结婚之前必须问自己的。
If not, here are the six crucial questions that you must ask yourselves before you pop the question.
如果还没有，下面这六个关键问题是你在准备结婚之前必须问自己的。
应用推荐