This is obviously not rocket science, but to me there are two important points.

虽然看似简单，没有火箭制造技术那么高深神秘，但对我来说，还是存在两个关键点。

youdao

This is a really simple idea. This is not a rocket science.

道理其实很简单，不是什么高精尖科技。

youdao

This is a really simple idea. This is not a rocket science.

道理其实很简单，不是什么高精尖科技。

youdao