开发比煤炭更便宜的再生能源。
再生纸对水的污染比原来少了35%，对空气的污染比原来少了74%。
Recycled paper can be made with 35% less water pollution and 74% less air pollution.
再生纸对水的污染比原来少了35%，对空气的污染比原来少了74%。
Recycled paper can be made with 35% less water pollution and 74% less air pollution.
应用推荐