Preliminary market research has shown that most Americans prefer environmentally-friendly products.初步的市场研究显示大部分美国人愿意选用对环境无害的产品。Our brochure is printed on environmentally-friendly paper.我们的小册子是用环保纸印制的。Offices can easily become more environmentally-friendly by, for example, using recycled paper.举手之劳就可以使办公室更加环保,比如,使用再生纸。