Minimize the amount of water your toilet uses with each flush by putting a plastic bottle (a large pop bottle will do fine) filled with sand or gravel in the toilet tank.
想减少冲马桶时的用水量，你可以把一个装满沙子或小石子的塑料瓶（汽水瓶也可以），放在水箱里。
Bottles of laundry detergent, empty water bottles filled with sand, or other heavy objects make great weights.
用洗衣清洁剂瓶或空水瓶装满沙子或其他重物可以大幅度地减轻体重。
A bag filled with sand and used as ballast, in the formation of protective walls, or as a weapon.
装满沙土的袋子，用作压载物以筑造防护堤，或者作为武器。
Some will be filled in (4) little by little with bits of sand or earth carried by rivers and streams.
江河所夹带的泥沙会渐渐地填满一些湖泊。
Some will be filled in (4) little by little with bits of sand or earth carried by rivers and streams.
江河所夹带的泥沙会渐渐地填满一些湖泊。
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