Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is most important.

宇宙是一个谜题，而化学是其中的一把钥匙。

We should learn from international leaders while developing our own path.

我们越是靠理智生活，就越不理解生命的意义。

试图在不激发学生学习欲望的情况下进行教学的老师，就像在冷铁上敲打。