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1.rescue 营救
Helicopters rescued nearly 20 people from the roof of the burning building.
直升机从着火的楼顶救出来了将近二十个人。
2.real time 实时
To make the training realistic the simulation operates in real time .
为使训练真实，模拟是实时运行的。
3.splits up 分裂
Under certain conditions this compound splits up, or decomposes, into two substances.
在一定条件下，这种化合物会分裂或分解成两种物质。
