1. In the area of the Black Sea, the alien jellyfishes brought about by the Ship ballast water multiply many times. It can gather even more than 1, 000 fist-sized jellyfishes per cubic meter in the high-density area, which made the economic loss in tourism and fishery up to 350 million dollars
在黑海海域，船舶压舱水带来的外来水母多次大量繁殖，高密度区内每立方米海水甚至聚集着千只以上拳头大小的水母，对旅游业和渔业造成经济损失达3.5亿美元。
2. We went to the National Museum of Marine Biology and Aquarium by car. I saw many beautiful fishes, sea horses and jellyfishes.
我们先去国立海洋生物博物馆，我看到了很多美的鱼、海马和水母，我还看了白鲸表演。
3. Any of various invertebrate animals of the phylum Coelenterata, characterized by a radially symmetrical body with a saclike internal cavity, and including the jellyfishes, hydras, sea anemones, and coral s.
腔肠动物一种腔肠动物门的无脊椎动物，特征是有囊状腔的辐射对称体，包括水母、水螅、海葵和珊瑚
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4. Coelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishes.
没有息肉或者至少息肉不明显的腔肠动物；水母。
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5. Any of various jellyfishes of the class Cubozoa, having a cube-shaped medusa and a venomous, sometimes fatal sting.
任一种立方水母纲的水母，有立方形的身体和有毒，有时甚至能致命的螫刺。
6. Ecology of jellyfishes in Jiaozhou Bay ⅰ. seasonal and annual changes in community structure
胶州湾水母类生态的初步研究Ⅰ.群落结构及其年季变化
7. Fro instance, variation in specific fatty acids in jellyfishes of different body sizes suggested that diet shift may happen during their growth.
如不同体长水母体内的特征脂肪酸变化说明水母在生长过程中很可能发生了食物转换。