塑料袋会给环境带来危害，因为它们要花漫长的时间才分解腐烂。

Plastic bags harm the environment because they take a long time to decompose.

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塑料袋有两大危害，一是耗费资源。

There are two plastic bags harm, First, resource-intensive.

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塑料袋有两大危害，一是耗费资源。

There are two plastic bags harm, First, resource-intensive.

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