green lung

基本解釋

A 15 x15 metre square, it ensures sunlight for all the rooms and acts as a kind of green lung.
這個(gè)院落只有15乘15平方米，但卻能為所有房間提供自然光，并充當(dāng)一個(gè)天然的綠肺。
julemei.com
In order to better its environment, Shanghai, China's largest and most populous city is planning to build a forest park spreading out over 300 hectares of land, to be known as the "Super Green Lung".
為了改善環(huán)境，中國(guó)最大的，人口最密的城市-上海，正在計(jì)劃建造一座占地300多公頃的森林公園，稱為“超級(jí)綠肺”。
In order to better its environment, Shanhai, China's largest adn most populous city, is planning to build a forest park spreading out over 300 hectares of land, to be known as the "Super Green Lung".
為了改善環(huán)境，中國(guó)最大的，人口最密的城市-上海，正在計(jì)劃建造一座占地300多公頃的森林公園，稱為“超級(jí)綠肺”。

It was those skills which have turned our once-shiny space station into a steamy green bacteria-funky lung.
NEWYORKER: Lostronaut

an area of parkland within a town or city, considered in terms of the healthier environment it provides