唯一: only；sole；uniqueness；alone；oneness；single.

例句与用法:

1. 治疗背痛的唯一办法是休息。

The only way to cure backache is to rest.

2. 这次撞车事故的唯一幸存者是一个小男孩。

The sole survivor of the crash was a little boy.

3. 她是班上唯一的欧洲人。

She is the only European in the class.

4. 小洞穴是唯一的避寒处。

A small cave was the only refuge from the cold.

5. 他是那次飞机失事唯一的幸存者。

He is the only survivor of the plane crash.

6. 他听到的唯一的声音就是那台机器的嗡嗡声。

The only sound he heard was the hum of the machine.

7. 希望是他唯一的依靠。

Hope is his only anchor.

8. 甜食是我唯一的嗜好。

Sweets are my only indulgence.