单词	sperm nucleus
释义	sperm nucleus noun : either of two nuclei that derive from the generative nucleus of a pollen grain and function in the fertilization of a seed plant Word History First Known Use 1887, in the meaning defined above
随便看	castaway castaways caste caste mark casted casteism casteisms Castel Gandolfo Castelar y Ripoll casteless castelet castellan castellano castellans castellany castellar castellate castellated castellated nut castellation castellations castellatus castellet castellorizo Castellón

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。