n.底( floor的名词复数 )；地面；（车厢内的）底板；议员席 双语释义：n.(名词)[C]地面,地板 the surface on which one stands indoors; surface nearest the ground[C]楼层 a level of a building[C]底 the bottom of the sea, a cave, etc.[S]议员席位 the part of a parliament, council building, public meeting