科学家还发现，大自然似乎对女孩有另一种促进作用。
Scientists have also found that nature seems to give another boost to girls.
女生更有可能经常发言，并对课堂有重要的促进作用。
Girls are more likely to speak up frequently and make significant contributions to classes.
在受污染的市区，他们还促进臭氧的产生，臭氧是对动物和植物生命有潜在毒性的烟雾的关键成分。
In polluted urban areas, they also enhance production of ozone, a key ingredient of smog that is potentially toxic to animal and plant life.
应用推荐