网站首页 汉语 德语 英语
(In a trochophore larva) a ring of cilia encircling the body posterior to the apical tuft.
Late 19th century; earliest use found in Journal of Morphology. From proto- + ancient Greek τροχός wheel.
雅致网英汉双解词典包含236457条英汉翻译词条,涵盖了常用英语单词及词组短语的翻译及用法,是英语学习的必备工具。