汽车的喇叭用于向其他司机发出信号。

The car's ___horn is used to signal other drivers.

出租车司机在十字路口按响了喇叭。

The taxi driver honked his ___horn at the intersection.

在雾中听到船的汽笛声，我感到宽慰。

I was relieved to hear the ship's ___horn in the fog.