She dusts every day.她每天都掸灰.Recovery of valuable dusts and fumes for economic reasons is also a major application.从经济的角度回收有价值的粉尘和微尘也是其主要的应用方面.Health standard for flax, jute and ramie dusts in the air of workplace.车间空气中麻尘(...

She dusts every day.她每天都掸灰.He began to search for her through the bush, pulling up trees and raising the dusts.他开始在丛林中搜寻她, 拔起树木,扬起尘土.Recovery of valuable dusts and fumes for economic reasons is also a major application.从...