first floor：n.地面以上的一层
复数： first floors
派生词： first-floor adj.
例句：
The things he once used can be seen on the first floor.
一楼有他曾经用过的东西。
Big Boy took Jimmy's hand in his mouth and tried to pull him down to the first floor.
大男孩咬住吉米的手,想把他拉到一楼。
温馨提示：
