trapdoors
基本解释
(trapdoor 的复数) n. 地板门, 活板门, 活动天窗
英文释义
plural of trapdoor
n. A lifting or sliding door covering an opening in a roof
or floor.
n. A door in a level for regulating the ventilating current;
-- called also weather door.
词形变化
上一个单词：trapdoor
下一个单词：trape