beacons

1.Lighthouse and beacons flash at night.

晚上灯塔与信号台闪着光。

2.the firing of the gun was the signal for a chain of beacons to be lit.

开枪是接连点燃烽火信号。

3.A chain of beacons was lit across the region.

整个地区点起了一系列灯塔。