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野外活动中,水的需要必须首先考虑,千万不要等水用光了再去找水。掌握这方面的常识加上敏锐细致的观察力,在野外就不会为水的问题所困扰。
In the field activities, the needs of water must be considered first, and do not wait for the water to run out of water again. Mastering this common sense combined with keen and meticulous observance will not be plagued by water problems in the wild.