精子的英文：
sperm
spermatozoon

Artificial insemination： Introduction of semen into a female's vagina or cervix by means other than sexual intercourse.
人工授精：不经性交而将精子引进雌性动物阴道或子宫颈内的方法。

dizygotic twins arise from two separate eggs fertilized by two spermatozoa
异卵双生子是由两个精子与两个不同的卵受精而成长起来的。

It is the only option for mil lions of men who are subfertile--that ismen who have low-motility sperm
这是一项对许多生育能力低下的男性的惟一选择，他们的精子运动能力差。

Antisperm maturation drug
抗精子成熟药

The majority of ejaculate is not sperm.
精液的大部分成分不是精子。

The sperm sample is produced by masturbation.
精子样本通过手淫获取。

The mixture of sperm and accessory fluids is called semen.
精子和附加的液体的混合物称为精液。

Doctor believed that his low sperm count was the problem.
医生认为他的精子数太低是问题所在。

Parthenogenesis in which the egg is activated by sperm,but without fusion of the egg and sperm nuclei.
雌核生殖一种单性生殖，精子激活卵子，但是卵子和精子核没有融合

A caplike structure at the anterior end of a spermatozoon that produces enzymes aiding in egg penetration.
精子头粒蛋白一种在精子内前端的帽状结构，可产生帮助穿透卵子的酶

A caplike structure at the anterior end of a spermatozoon that produces enzymes aiding in egg penetration.
精子头粒蛋白一种在精子内前端的帽状结构，可产生帮助穿透卵子的酶

A pore in the membrane covering the ovum of some animals through which a spermatozoon can enter.
卵膜孔一些动物卵细胞覆盖膜上的小孔，精子可由此进入