But just to be really clear, I've written out exactly which equations you do have to memorize on the front here, so long as you know those, the rest you can just look up.

但是让大家清楚，我已经,把大家需要记住的公式都写在前面了，只要你知道了这些，其它的就只需要查了。

麻省理工公开课 - 化学原理课程节选

I think I could maybe afford a front door if I work really hard for the rest of my life.

我想如果我下半辈子努力工作的话，我可以买得起一个前门。

怡人的的汉普斯特德 - SpeakingMax英语口语达人