一位男人听到了我说的话，在我走之前拦住了我。

A man heard it and stopped me just before I went away.

youdao

我走之前需要你在这些上签个字。

I just need you to sign these before I leave.

youdao

爱德华·格林：我走之前，我们能谈一下吗？

EDWARD GREEN: Before I go, can we have a chat?

youdao

What I am going to do next day is go into the larger stoichiometry and understand the principles of mass balance and reactivity But before you go,hold it,I don't want you racing off.

下堂课我要做的是,讨论化学计量学，和,质量平衡很反应定律,但在下课之前，我不希望你们这么快走。

麻省理工公开课 - 固态化学导论课程节选

I must finish this project before I go.

我走之前必须完成这个项目。

Must 课堂 - SpeakingMax英语口语达人