?浓度
... 胎儿纤连蛋白fFN Fetal fibronectin 浓度Sperm Concentration 毛滴虫TV Trichomonas Vaginalis Antigen ...
And the more inconsistently sized the sperm a man manufacturers, particularly with regard to the flagellum, the lower his concentration of sperm that could swim well.
FORBES: News for Men: Size Matters When it Comes to Your Swimmers
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。