Yes.

明白了。

So, in an earthquake, the earth shakes.

因此，地震时，地球震动。

Yes, of course. It's very easy.

那当然。煮它（豆腐）并不难。

I find listening really hard. Sometimes it's just impossible to understand.

我觉得听力很难。有时简直听不懂。

Take care. The pan's very hot.

当心，锅很烫。

People had to use other ways to record information.

人们只得使用其他方法记录资料。