Waxman - Markey更严重的不足在于，它建立了一个系统，在这个系统下许多污染工厂将不需要为排放温室气体的权力付费——他们将免费得到许可证。

The more serious objection to Waxman-Markey is that it sets up a system under which many polluters wouldn't have to pay for the right to emit greenhouse gases - they'd get their permits free.

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它们造成许多环境污染。

They cause much environmental pollution.

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许多国家正在制定规则来对抗污染。

Many countries are making rules to fight pollution.

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