A Roper poll found that one in six Americans hired cleaning help last year, up from one in 10 in 1986.
A Roper poll found that one in six Americans hired cleaning help last year, up from one in 10 in 1986.
一项洛普民意调查发现，去年有六分之一的美国雇用清洁服务，较一九八六年的十分之一比率上升许多。