HEPA filters capture almost all particles in the air that are zero point three microns in size or larger.

VOA: special.2009.07.14

It's seeking to ascertain the meaning of events to draw larger philosophical, ideological conclusions from the events of history, and to point to the larger purpose or design of history, not to say just what happened, but to say why it happened and what it means for us today that it did happen.

它致力于查明事件的意义,得出哲学性的思想性的结论，从历史事件中，并且指出历史图景中的宏观目的，不说发生了什么，而阐明为什么它会发生,而它发生了对于今天的我们有何意义。

耶鲁公开课 - 旧约导论课程节选

Our third example for using the "That's what" pattern is when you explain a specific point about a larger issue.

使用 "That's what" 的第三种情况，是解释一个大问题中的特定方面。

That's what课堂 - SpeakingMax英语口语达人