A flat structure, typically made of planks, logs, or barrels, that floats on water and is used for transport or as a platform for swimmers.是什么意思_A flat structure, typically made of planks, logs, or barrels, that floats on water and is used for transport or as a platform for swimmers.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句