为了减轻负重，他们把一些必需品转移到了塑料袋里。
To lighten their loads, they transferred a few essentials to the garbage bag.
增强关节的运动等物理疗法，偶尔有用，减轻负重是有利的。
Physical therapy for joint strengthening exercises may occasionally by warranted, and weight reduction is beneficial.
计划一罐食物和轻包装的小吃，只需要最小的包装和准备时间，减轻负重和减少垃圾。
Planning for one-pot meals and light weight snacks requires a minimum of packing and preparation time, lightens loads and decreases garbage.
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