英语词汇“flap door”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	flap door
释义	WordReference Random House Unabridged Dictionary of American English © 2024 flap′ door′, `Also called falling door.` a door hinged at the bottom so as to fall downward and outward. a door placed horizontally or on a shallow incline, as an exterior cellar door. 1835–45
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