Two casualties were airlifted to safety .是什么意思？

Two casualties were airlifted to safety .

两名伤亡人员已空运到安全地区。

two

n. 两个，两个东西，两点钟，一对；adj. 两个的，我

例句
He has been absent from his desk for two weeks...
他已经有两个星期没有坐在办公桌前了。

casualties

n. 伤亡者( casualty的名词复数 )，牺牲品，受害者，毁坏物；

例句
Fiat has been one of the greatest casualties of the recession.
菲亚特一直是经济萧条中损失最惨重的公司之一。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

airlifted

v. 空运( airlift的过去式和过去分词 )；

例句
The injured were airlifted to hospital in Prestwick...
伤者被空运送往普雷斯特维克的医院。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

safety

n. 安全，安全性，安全处所，中卫；adj. 保障安全的；

例句
Strict safety tests are carried out on food additives.
对食品添加剂进行了严格的安全检测。