One should not run about aimlessly during an alert.

空警报期间不可到处乱跑。

Many people died in the London blitz.

许多人在伦敦大空中丧生。

During the blitz we spent the night in underground shelters.

空期间, 我们在防空洞过夜。

The little girl fell victim to a bomb in a fascist air raid.

那小女孩在次法西斯空中成了枚炸弹牺牲者。

We can annoy the enemy by raids.

我们可以用空骚扰敌人。

The correspondence dropped after the enemy's airraid.

敌人空后通信中断了。

Our house was blown up in an air raid.

在次空中我们房子被炸掉了。

In an air raid last night the enemy aircraft bombed the city.

在昨晚空中敌机轰炸了该城。

The fort cannot be defended against an air attack.

这座要塞遭到空时无法防御。

On 2 April 1916 air-raid warnings sounded throughout Edinburgh.

1916 年4 月2 日空警报响彻了整爱丁堡。

London was blitzed during the war.

伦敦在战时遭到大规模空。

One of the major aims of the air raid was the complete demolition of all means of communications by bombing.

这次空主要目,就是通过轰炸彻底摧毁敌人通讯设施。

North American Aerospace Defense Command (NORAD) - a binational command involving the United States and Canada which provides warning of missile and air attack against both of its member...

北美航空防御指挥部-美国和加拿大联合指挥部，提供导弹发射和空警报，保卫北美领空，并提供空中防御。