Education is critically important.

教育当然极度重要。

This is a critically important final step.

这是极为重要的最后一步。

Clinton: Oh, I think it's critically important.

克林顿：哦，我认为相当重要。

If so, then this is critically important information.

如果你知道，那么这些信息是非常重要的。

The timing of school closure is critically important.

关闭学校的时机至关重要。