是environment-friendly还是environmental-friendly?

是environment-friendly还是environmental-friendly? environment-friendly还是environmentally-friendly? environment friendly 还是environmentally- friendly 环保的英语是environment friendly还是environmentally friendly 环保用英语怎么说environment-friendly?还是 environmentally friendly?前者是 environmental friendly material是什么意思 "friendly"的比较级究竟是friendlier还是more friendly? friendly的比较级到底是friendlier还是more friendly 环境污染是environment pollution还是environmental pollution 用浅显的英文解释Environmental-friendly environmental-friendly是不是“环保的”意思? 英语翻译用eco-friendly还是environment friendly 更好一些呢?用前者加前缀的是否大家能够明