The sooner the better.

越快越好。

It's incredible.

难以置信！

He often fails to keep his word.

他常常不遵守诺言。

She is sick in bed.

她卧病在床。

Let's stop discussing trivial details and come to the point.

咱们别再谈琐碎细节了，说正事吧。

Please hurry, we're a bit pressed for time.

请快点，我们时间不多了。