Donald has become incensed at his friends for being so unkind.

唐纳德因为他的朋友太不客气，所以被激怒了。

The chemist discovered a new synthetic material.

化学家发现了新的复合物质。

Dorothy felt refreshed after her nap.

多罗茜一觉醒来，觉得精神一爽。

We must listen carefully to the teacher.

我们必须注意听老师说的话。

Can you tell one from the other?

你能区别哪个是哪个吗？

I don't allow my children to play with toy guns.

我不让自己的孩子玩玩具枪。