n.洗衣店,清洁剂( cleaner的名词复数 ),保洁员,吸尘器,干洗店
Each morning cleaners make sure everything is spotless.
每天早晨,清洁工们会把一切都打扫得干干净净。
Vacuum cleaners work by suction.
真空吸尘器靠抽吸除尘。
Window cleaners are pulled up and down tall buildings on cradles.
窗户清洁工乘坐能升降的吊篮清洗高层建筑物的窗子.