文章认为一个高效完善的旅游安全救援系统应该由核心机构、救援机构、直接外围机构、间接外围机构四部分共同组成。

The author believes that an efficient and perfect tourist rescue system should consist of core institution, the rescue organization, the direct outside setup and indirect outside setup.

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一架小型飞机从一个偏远的南极科考站出发，英勇地执行了救援任务。随后载着两名生病的美籍工作人员，于周三晚间安全抵达智利。

A small plane with two sick U.S. workers arrived safely in Chile late Wednesday after leaving Antarctica in a daring rescue mission from a remote South Pole research station.

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消防队员知道如何安全地进行救援。

Firemen know how to perform rescues safely.

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