Wood is the most environmentally friendly construction material.

此外，木材还是最环保的建筑材料。

youdao

Voice 4: Cycling is the most environmentally friendly means of transportation.

声音4：骑车是最环保的一种交通方式。

youdao

The leather used on this style is sourced from one of the most environmentally friendly tanneries in the world.

这种风格所用的皮革是来自世界上最环保的皮革厂之一。

youdao

And,it has been rated one of the most environmentally friendly cities in the world.

VOA: special.2010.02.10

The fourth example was a G-Wizz electric vehicle which is the most environmentally friendly or carbon neutral green vehicle type.

BBC: NEWS | Programmes | Breakfast | Low carbon family: "Green" cars

The facts are clear: pipeline infrastructure is the safest, most affordable, most efficient, and the most environmentally friendly means of transporting the resources we need.

FORBES: Pipeline Infrastructure: Rhetoric v. Reality

As a job with zero commuting, blogging could be one of the most environmentally friendly jobs around -- but it can also be quite profitable.

WSJ: America's Newest Profession: Blogging – Mark Penn, WSJ.com