剑桥词典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（一种生长在太平洋里的大型哺乳動物，类似海牛） 返回 dugong