households农户householdn.家庭；户adj.家庭的；家喻户晓的household porcelain日用瓷household lifestyle家庭生活方式Household accessory家用附属品household marsh gas户用沼气household wastewater生活废水household appliances家用电器householdsafety plan家庭安全计划household generation户用发电household sanitation家庭卫生household enterprise家族企业