进口来源地的环保标准通常较美国宽松得多，其最终结果很有可能是造成更多污染，而非减少污染。

The net effect is likely to be more pollution, not less.

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我们需要制定更多法律来防止污染。

We need more laws to stop pollution.

《牛津词典》

修建更多的支路将减少城镇中的污染和交通堵塞，从而改善环境。

Building more bypasses will help the environment by reducing pollution and traffic jams in towns and cities.

《柯林斯英汉双解大词典》

But we need to become more concerned about global warming, pollution,

我们需要更多关注全球变暖、污染问题，

有很多活动 - SpeakingMax英语口语达人