一个是捍卫者，另一个是解救者。
两名幸存者受困二十分钟后才被解救出来。
Two survivors were cut free after being trapped for twenty minutes.
用了十个小时才把遇难者从倒塌的建筑物中解救出来。
It took ten hours to free the victims from the collapsed building.
用了十个小时才把遇难者从倒塌的建筑物中解救出来。
It took ten hours to free the victims from the collapsed building.
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