时事: current trends, the present situation, how things are going...
账: account, bill, debt...
时而: occasionally, from time to time...
兑换: to convert, to exchange...
火药: gunpowder...
爆: to explode or burst, to quick fry or quick boil...
女子: woman, female...
当选: to be elected, to be selected...
出口: export...
成群结队: making up a group, forming a troupe (idiom); in large numbers, as a large crowd...
