但我在做生意，如果有人买，我就买啊。

But I run a business. If somebody’s buying, I’m selling.

youdao

如果你买的东西单个包装里面有10件或者25件，那么就不要惊讶超市人员会请你离开，如果有12件就不会有人在意了。

If you get in the 10 items or less line with 25 items, don't be surprised if you are asked to leave. If you have 12 items, not many people will care.

youdao

如果有人问我会不会买二手产品？

If anyone asks me will I buy second-hand products?

youdao

Some people asked me, if they bought the earlier version of the text, you can find the translation to the earlier version of the text on these question numbers.

有人问我，如果他们买了这本书的早期版本，你们找到这本书早期版本的翻译,关于这些问题的数字。

麻省理工公开课 - 固态化学导论课程节选