常見例句The first reported event of this kind in the United States happened in Donora, a factory town in a valley near Pittsburgh. 據(jù)報導，在美國的第一起這類事件發(fā)生在靠近匹玆堡的多諾拉。多諾拉是一個城鎮(zhèn)，那裡全是工廠。Donora crisis 美國多諾拉事件 返回 Donora