recycling

Many cities have mandatory recycling programs for glass, aluminum, and paper products.

(Chinese) 许多城市对玻璃、铝和纸制品都有强制性的回收计划。

Recycling helps reduce the amount of waste that ends up in overflowing landfills.

(Chinese) 回收利用有助于减少进入日益满负荷的垃圾填埋场的废物量。