单词 | 圆口纲 |
例句 | DEFINITIVE EXAMPLES 权威例句〔cyclostome〕Any of various primitive eellike vertebrates of the class Agnatha, such as a lamprey, lacking jaws and true teeth and having a circular, sucking mouth.圆口纲脊椎动物:一种类似鳗鱼的无颚纲原始脊椎动物,如盲鳗,没有下颚和真正的牙齿,而长着圆形吮吸的嘴美国传统〔fish〕Any of various primitive aquatic vertebrates of the class Cyclostomata, lacking jaws and including the lampreys and hagfishes.鳗类,鳗:无颚的各种原始水生圆口纲脊椎动物中的一种,包括七鳃鳗和盲鳗美国传统 |
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