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单词	accessory chromosome
释义	accessory chromosome noun 1 : a sex chromosome specifically : an X chromosome that is solitary and unpaired in one sex (as in certain insects) 2 : b chromosome Word History First Known Use 1899, in the meaning defined at sense 1
随便看	black rudder fish black ruff black runner black rush Black Russian black rust black sage black salamander black sally black salmon black salsify black salt black salts black saltwort black sampson black sanctus black sand black sanicle black sapote black sassafras black scab black scabbard fish black scabbardfish black scale black scoter

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。