既然你要经常出差，去申请一张飞行积分卡。

Kyle: Since you'll be traveling often, apply for a frequent flyer card.

youdao

如果你平时不经常用手机，那么你要准备一个。

Use a prepaid cell phone if you do not usually have one.

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想法现实可行的话尽快对其检查回顾 --一旦设立有效存储你的想法的系统之后，你要养成经常检查回顾你这些想法的习惯。

Review Ideas as Soon as Realistically Feasible – Once you have an effifient system down for storing your ideas, you have to create a regular habit of reviewing them.

youdao

Occasionally, you'll find you need to cancel out units, because, of course, you're always doing unit analysis as you solve your problems, and sometimes you'll need to convert joules to kilogram meters square per second squared.

偶然地，你会发现需要消除单位，因为在解题时,经常要做单位分析，所以有时候需要把,焦耳换做,一千克乘以米的平方除以秒的平方。

麻省理工公开课 - 化学原理课程节选

Why? Because typically, you're doing that to use it somewhere else in the program.

为什么要这么做呢？因为你经常会在程序中,用到这一点。

麻省理工公开课 - 计算机科学及编程导论课程节选