The school component reinforces the Switch messages by providing teachers with materials and methods to integrate key health concepts into the school day.

学校部分就是通过提供给教师设备和方法，把Switch课题中主要的健康理念纳入到学校每一天，以强化孩子们头脑中的信息。

youdao

If -a is a hash switch, then just hello will create a key of hello with an undef value.

如果- a是一个散列开关，那么hello仅会创建一个带有undef值的hello键。

youdao

We also pinpoint key things to think about before you take the plunge and talk with people who made the switch to find out how they did it.

另外，我们明确指出了在转行之前需要考虑的关键问题，还对那些已经二次就业的人们进行了访谈以找出他们是如何做到的。

youdao

With a mechanical keyboard, on the other hand, each key press triggers an actual on-off switch a feeling as solid as flicking on the lights.

WSJ: Keys That Really Click