... citron 香橼 city compost 城市垃圾堆肥 cladode 叶状茎 ...
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By picking up unsorted trash less often, Portland wants to divert waste from landfills and churn this leafy city's considerable volume of vegetation into compost.
WSJ: Portland Creates Buzz by Cutting Garbage Pickups
Compost collection is nearly three times what the city expected, he adds.
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