创业前你必须知道的5件事情——第一部分。

Things to Know Before Starting a Business - Part I.

youdao

创业前你必须知道的5件事情(第一课和第二课)。

Things to Know Before Starting a Business (Lessons I and II).

youdao

以上，就是你必须知道的建立一个成功地项目计划表的6个步骤。

So, those are the 6 steps you need to know to create a successful project schedule.

youdao

If the question of time is not explicitly brought up, then you should know that you have to use this formula.

如果时间的问题并没有明确提出,那你应该知道,必须要用这个式子

耶鲁公开课 - 基础物理课程节选

Yeah, but I think it's also an important skill. You need to be able to express what you know

难，但是我也觉得这是一种重要的技能。你必须能够把你知道的表达出来，

沟通很重要 - SpeakingMax英语口语达人

It would be much better if you had a reference point that didn't care where the pressure was.

我们还需要精确地定义气压,你必须知道气压的大小,当然如果我们能找到一个。

麻省理工公开课 - 热力学与动力学课程节选