environmental-friendly or environment-friendly?名词还是形容词啊?

问题描述:

environmental-friendly or environment-friendly?
名词还是形容词啊?

名词正确 environment-friendly

environment-friendly; or
environmentally friendly

environmentally friendly,environmentally 形容 friendly,不可加-.environment-friendly,这一整个词都是形容词.两者意思相同,前者算两个字,后者算一个字.

environmentally friendly
要用副词