Depollute
v. 防止污染
??? 情景例句
This is meant to happen.
這件事注定要發生。
Would you light my cigarette?
你能替我點燃香煙嗎？
By 1820 the population of New York had grown to about 125,000, making it the largest city in the USA.
到1820年，紐約市的人口增長到12。5萬人左右，使它成了當時美國最大的城市。