去年，中国的环境面临着严峻的形势，几处主要的河流和湖泊被工业废料堵塞。

Last year, China's environment was facing a grave situation, with several major rivers and lakes clogged by industrial waste.

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这一转变已降低了中国主要湖泊和水库的污染，使人们的饮用水更加安全。

This switch has decreased pollution in the country's major lakes and reservoirs and made drinking water safer for people.

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中国湿地面积大约61英亩，包括沼泽、红树林、环礁湖、河流三角洲、湖泊以及沿海一些地区，总计为国土面积的2.5%。

China has 61 million acres of wetlands, which include swamps, mangroves, lagoons, river deltas, lakes, and coastal areas that collectively cover about 2.5 percent of the country.

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