The dredging operation at the west of Butterfly Beach, Tuen Mun involves the laying of submarine cable by grab dredging within about 300 m from the nearest boundary of the Butterfly Beach.是什么意思_The dredging operation at the west of Butterfly Beach, Tuen Mun involves the laying of submarine cable by grab dredging within about 300 m from the nearest boundary of the Butterfly Beach.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句