cyclostomatacyclostomes圆: round; circular; spherical口: mouth纲: the headrope of a fishing ne ...圆口纲脊椎动物: cyclostome内口纲: entognatha下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:圆口纲,即可在微信中查询翻译