[mass noun]the action of sailing in a ship or boat 航海,航行 [as modifier]a sailing club. 航海俱乐部。 ■[count noun]a voyage made by a ferry or cruise ship, especially according to a planned schedule (尤指渡船或航船的)水运航班 the company operates five sailings a day from Ramsgate to Dunkirk. 公司从拉姆斯盖特到敦刻尔克每天开五个航班。 ■[in sing.]an act of beginning a voyage or of leaving a harbour 启航