trapdoor 的英语意思
trapdoortrapdoor /ˈtræpdɔː $ -dɔːr/ noun [countable] 
查看全部语言翻译 a small door that covers an opening in a roof or floor覆盖屋顶或地板开口的小门；活板门
查看全部语言翻译 a small door that covers an opening in a roof or floor覆盖屋顶或地板开口的小门；活板门 查看全部语言翻译 a small door that covers an opening in a roof or floor覆盖屋顶或地板开口的小门；活板门