电池也是一个手电筒，它可以提供十个小时的照明。
The battery is also a flashlight, and it can provide ten hours of light.
在黑暗中使用手电筒寻找应急照明设备。
During a blackout, only use a flashlight for emergency lighting.
但是在退休之前，他们有时候会在工作归来后做园艺，把手电筒绑在头上来照明。
But before they retired, they'd sometimes garden after work, strapping torches to their heads.
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