2025-12-17 来自：本站原创
alarm n.warn的意思主要指“警告，告诫”，有事先告诉可能发生的事，警告说……的意思。
例：There were several alarms during the night but no actual air raid actually took place.
当夜，空袭警报拉响了数次，但并没有飞机来袭。
He warned us that the road was icy.
他警告我们说道路很滑。