The framework and the lee-board, if any, of a berth shall be ofapproved material, hard, s mooth, and not likely to corrode or to harbourvermin.是什么意思_The framework and the lee-board, if any, of a berth shall be ofapproved material, hard, s mooth, and not likely to corrode or to harbourvermin.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句