每年陆军和海浑都举行防空演习。
Every year the army and thd mavy hold maneuvers for practice.
每年陆军和晦军都举行防空演习。
Every year the army and the navy hold maneuvers for practice.
突然下达了一个防空演习的命令。
An order was suddenly given for a practice air - raid defence.
在防空演习时对一切灯火都实行管制。
人家告诉我们防空演习警报响的时候，要待在地下室。
We were told to stay in the basement when the air-raid drill siren was on.
人家告诉我们防空演习警报响的时候，要待在地下室。
We were told to stay in the basement when the air-raid drill siren was on.
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