My friend sets 10 alarms every morning. I think it's a bit overkill.

我朋友每天早上定十个闹钟。我觉得有点多此一举了。

The rooms were all fitted with smoke alarms.

所有的房间都安装了烟雾报警器。

We have fully functional smoke alarms on all staircases.

我们在所有楼梯上都装有运转完全正常的烟雾报警器。

Hundreds of lives could be saved if the installation of alarms was more widespread.

如果警报器的安装范围更为广泛，成百上千人的生命就可能获救。

This chart shows the vertical sequence of some of these alarms.

这个图表显示了这些警报的垂直顺序。

It alarms me that nobody takes this problem seriously.

谁都不认真对待这个问题，我非常担心。