青云翻译

In the picnic ground, parks and other public venues arbitrarily discarded paper, plastic, food packaging, bottles and other pollution is another common behavior

At the picnic, parks and other public venues arbitrarily discarded paper, plastics, food packaging, bottles, is another common behavior of

At the picnic, the park and other public locations discard the paper, the plastic, food packing box, the jar and so on are at will another kind of common pollution behaviors

In picnics, parks and other public venues free discarded paper, plastic, food packaging boxes, bottles, and other is another common acts of pollution

At the picnic, parks and other public venues arbitrarily discarded paper, plastics, food packaging, bottles, is another common behavior of