底层: ground or first floor, bottom (of a pile), lowest rung (of society)...
精疲力竭: spirit weary, strength exhausted (idiom); spent, drained, washed out...
泄密: to leak secrets...
研发: research and development, to develop...
客厅: drawing room (room for arriving guests), living room...
立方米: cubic meter (unit of volume)...
盖子: cover, lid, shell...
住房: housing...
厂家: factory, factory owners...
邮政: postal service, postal...
