Furthermore, in a congested city these green spaces offer a breath of fresh air and a place to relax from the rigours of the day.

此外，在一个拥挤的城市，这些绿色空间能让我们呼吸一下新鲜的空气和有一个地方放松一天的紧张。

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These green spaces provide people in a congested city with a breath of fresh air and a place to relax from the rigours of the day.

这些绿色空间为拥挤城市里的人们提供了呼吸新鲜空气和在紧张日子里放松的地方。

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Each city bus can collect up to 550 pounds of plastic bottles and cups every day. The collected bottles are sold to recycling companies and the money earned from it goes toward running the bus companies and providing money for green spaces in the city.

每辆城市公交车每天可以收集多达550磅的塑料瓶和塑料杯。收集到的塑料瓶被卖给回收公司，赚来的钱用于运营公交车公司，并为城市的绿化提供资金。

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They were part of the city's Green Summer Job Corps, a project of the District Department of the Environment.

VOA: special.2009.09.04

This huge group of green warriors entered the city as friends and allies.

VOA: special.2010.07.31

It also used to be described as the green city in the sun, but now it more resembles a concrete jungle.

BBC: Joseph's odyssey

They hit the ground on green modes of transport to take on the Green City Challenge, picking up the best of green initiatives in a city heaving with mechanical and human traffic.

CNN: This month on Road to Rio

Construction just commenced on a new 90, 000-square-foot store in North Portland that will be home to not only the largest green roof in the green roof-happy city of Portland, but the largest green roof in the entire state of Oregon.

FORBES: Portland To Get Massive Green Roof -- Atop A Walmart