在克拉科夫，很多污染物来自家庭或工厂的煤燃烧，而在纽约市，小汽车，卡车和巴士的尾气排放是主要来源。

In Krakow, most of the compounds come from coal burning for home heating and factories, while in New York City, exhaust from cars, trucks and buses is the major source.

youdao

根据一份最近的可靠数据，纽约市每年平均1000名少女中有77人怀孕，而在整个美国，这个比例是每1000名中70人。

There are 77 pregnancies a year per 1, 000 teenage girls in New York, according to the latest available figures, compared to 70 per 1, 000 teenage girls around the United States.

youdao

whereas the Upper West Side is becoming a place where people can establish families in the city

而上西区正在变成人们可以在纽约市安家的地方，

上西区的富人 - SpeakingMax英语口语达人