The attosecond timescale is to electron motion what the high-speed camera was to studying animal locomotion.

任正非内部讲话稿

We are all haunted by the ghosts of our past.

要说“我爱你”，首先必须知道如何说“我”。

The challenge of climate change requires collaboration between governments, businesses, and civil society.

我不是黑帮，我不是暴徒，我只是一个喜欢押韵的人。