这个小工具是一个有用的电子设备。

This gadget is a useful electronic ___device.

救援人员使用了一种特殊的设备来寻找被困在倒塌建筑物中的人。

Rescuers used a special ___device for finding people trapped in collapsed buildings.

多亏了现代技术提供给我们的设备，我白天有更多时间做其他事情。

I have much more time for many other things during the day thanks to the ___devices modern technology offers us.