负一层 Traditional 負一層 fù yī céng 🔊 basement level 1; floor B1 + Review this word Meanings fù yī céng 負一層 (architecture) basement level 1; floor B1 Its characters 负fùto bearHSK 7–9一yīoneHSK 1层céngto pile on top of one anotherHSK 3