泉水干涸后，露营者不得不节约使用饮用水。
The campers had to husband their drinking water after the spring dried up.
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解释
节约使用（水资源），精打细算管理有限的饮用水
The campers had to husband their drinking water after the spring dried up.
节约使用（水资源），精打细算管理有限的饮用水