Strong dust storms may cause deaths, so you should know how to protect yourself from dust storms when you meet them.

强烈的沙尘暴可能会导致死亡，所以当你遇到沙尘暴的时候，你应该知道如何保护自己。

youdao

Anytime you go into the woods, somebody should know where you are going, and when you expect to return.

当你计划去森林的时候，应该提前告知其他人你要去哪里，什么时候回来。

youdao

I'd like to tell you about the table manners which you should know when you visit France.

我想告诉你一些去法国时应该知道的餐桌礼仪。

youdao

You shoot something, you should know when it will land, where it will land, with what speed it will land, how high it will go.

抛出一个物体,我们要知道落地时间,落地位置,还有落地的速度,最高点的高度

耶鲁公开课 - 基础物理课程节选

So you should know when you look at a graph like this what it's doing.

因此当你看到这样一个图表时,要知道它是怎样运动的

耶鲁公开课 - 基础物理课程节选

That means, when I take two derivatives, I want to get a, then you should know enough calculus to know it has to be something like at^, and half comes from taking two derivatives.

也就是说,当我想求二阶导时,得到了a,你应该有足够的微积分知识,才能知道必须有类似at^的项,而这个1/2则是因为求了两次导数

耶鲁公开课 - 基础物理课程节选

Do you know when you should drop one of your two health insurance plans?

FORBES: Sidelines

Our first edition focuses on terms you should know when reading about clinical studies in the newspaper or on the Web.

FORBES

Coupled with that, you should know when NOT to fire your advisor.

FORBES: When to Fire a Financial Advisor