She dusts every day.她每天都撣灰.He began to search for her through the bush, pulling up trees and raising the dusts.他開始在叢林中搜尋她, 拔起樹木,揚起塵土.Recovery of valuable dusts and fumes for economic reasons is also a major application.從...
She dusts every day.她每天都撣灰.Recovery of valuable dusts and fumes for economic reasons is also a major application.從經(jīng)濟的角度回收有價值的粉塵和微塵也是其主要的應用方面.Health standard for flax, jute and ramie dusts in the air of workplace.車間空氣中麻塵(...