英语词汇“flotation device”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	flotation device
释义	flotation device noun An object used to provide or maintain buoyancy in water: all who remain missing are believed to be wearing flotation devices... Everyone on board must wear a personal floatation device. Previously such boats were required only to carry flotation devices. They're swimming in the deep end without any floatation devices.
随便看	locking pallet locking piece locking plate locking spring locking stone locking wheel lockjaw lockjawed lock-keeper lock-knit lock lanyard lockless lockman locknut lock-on lock on to lockout lock paddle lock pen lock picker lock piece lock pit lock pool Lockport lock pulley

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