车灯的英文是headlights。它的来源可能源自车头上的灯具。下面是一些英文例句和中文翻译：

I forgot to turn off my headlights and now the battery is dead. 我忘了关车灯，结果电池没电了。

The headlights on my car are so bright, they make it hard to see at night. 我的车灯太亮了，夜晚开车很难看清前方。

I always make sure to turn on my headlights when I drive at night. 我开车的时候总是确保把车灯打开。