created sense approved 大氧吧 · dàyǎngbā · oxygen source
大氧吧
dàyǎngbā
oxygen source
A natural area, such as a forest or nature reserve, that provides fresh, oxygen-rich air; often metaphorically called the 'lungs' of a city or the planet.
这座森林公园被誉为城市的“天然大氧吧”。