The inside of the box will stay several degrees cooler than the outside air temperature. And this may be cool enough to keep foods fresh, at least for a short time.
盒子里面将比外面空气温度低几度，这些对保持食物新鲜就足够，至少在短时间内。
Air will pass through the wet cloth. The inside of the box will stay several degrees cooler than the outside air temperature.
空气穿过湿布，将使盒子内部维持低于室外的温度。
Air will pass through the wet cloth. The inside of the box will stay several degrees cooler than the outside air temperature.
空气穿过湿布，将使盒子内部维持低于室外的温度。
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