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| 废料分类 将废料分离成不同的材料，如玻璃、金属、纸张、塑料等。 (Разделение отходов по различным типам материалов, например, стекло, металл, бумага, пластмасса и т.д); 垃圾分类 | |||
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сортировка отходов : 2 phrases in 1 subject |
| Environment | 2 |
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