据估计年均家庭收入在10,000到15,000美元。 c.Microsoft has become a household name/word. 微软已成为家喻户晓的名字。 d.a four-person household四▣之家 据估计年均家庭收入在10,000到15,000美元。 c. Microsoft has become a household name/word. 微软已成为家喻户晓的名字。 d. a four-person household 四口之家