你何时来北京会计学校学习的？

When did you come to Beijing Accounting School?

youdao

无论你何时来我家，你都是受欢迎的。

Whenever you come to my house, you are always welcome.

youdao

无论你何时来，我都将最热忱的欢迎你。

No matter when you come, I will extend my deepest welcome to you.

youdao

If you were asking questions, like, how high does it go, but you don't ask when does it go to the highest point, then you don't have to go through the whole process of finding the time at which it turned around.

如果你想问,例如,它可以到多高,不过你并没有问它何时达到最高点,那么你不用从头到尾再来一遍,来弄清质点何时转向

耶鲁公开课 - 基础物理课程节选