单词：trapdoor
音标：['træpdɒ:] ；
n. 地板门, 活板门, 活动天窗
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.
or floor.
n. A door in a level for regulating the ventilating current;
-- called also weather door.
词型变化：名词复数形式 : trapdoors
词性分布：
trapdoor的用法和样例：
例句
用作名词(n.)
- The woman shut the trapdoor with a slam.这位女主妇砰的一声关上地板门。
- There's a trapdoor into the attic.这儿有一扇通往阁楼的活板门。
词汇搭配
- trapdoor knapsacks陷门背包
- trapdoor function诀窍函数
【近义词】
- door门
单词：trapdoor 相关文章
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发表于:2019-02-11 / 阅读(304) / 评论(0)
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英文摇滚歌曲