| 例句 |
People were making for the air-raid shelters below ground.人们正奔向地下防空洞。They had started to issue gas masks and prepare air-raid shelters.他们已经开始发放防毒面具，并准备防空洞。An air-raid alarm sounded in the depths of night.深夜响起了空袭警报。This place was an air-raid shelter during the war.这地方在战时是一个防空洞。 |