短語詞組短語on -course indicati 表示在航線上的指示structure on lining course 網(wǎng)絡(luò)課程結(jié)構(gòu)wabbling on thd course 左右偏航前進(jìn)demands on the course 課程要求wabble on the course 擺首Items on the course 議程項(xiàng)目right on the course 在航向上be on her course 航向不變;船航向不變 返回 on course