劍橋詞典a large sea animal , similar to a manatee, that is found mainly in the Indian and Pacific oceans. It has thick skin , a divided fin at the back end of its body , and two flippers (= flat parts for swimming ) at the front . 儒艮（一種生長(zhǎng)在太平洋裡的大型哺乳動(dòng)物，類似海牛） 返回 dugong