Colorful cartoon characters were symbols of different kinds of recyclable materials, which could help children get to know the importance of recycling.

五彩缤纷的卡通人物是各种可回收材料的标志，可以帮助孩子们了解回收利用的重要性。

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Where possible, use only plastic containers denoted by a code 2 (polyethylene) or code 5 (polypropylene) in their triangular recycling symbols.

ECONOMIST: The plastics industry��s Pyrrhic victory