问答题

It is only when we cannot see perfectly that we realize how important our eyes are.

【参考答案】

我们只在视力不太好时才会意识到眼睛有多重要。

<上一题目录下一题>

热门试题

问答题

As worrying, though, is the passenger who can’t hear the instructions to turn off his radio because the music’s too loud.

问答题

Experts know that portable devices emit radiation which affects those wavelengths which aircraft use for navigation and communication.