【英语时差8,16】前列腺疾病（上）

What most people know about the prostate gland¹ is that it tends to develop infections and cancer in men over the age of sixty-five. But unlike another organ prone² to infection called the appendix, the prostate does important work. In fact, the human species couldn’t survive without it. A walnut-sized organ resting under the bladder, the prostate produces a fluid that constitutes most of the liquid in semen. The prostate fluid in semen helps keep sperm³ healthy and active after ejaculation. Since lively sperm have a better chance at fertilization, a working prostate is crucial for human reproduction.

1 gland   

n.腺体，(机)密封压盖，填料盖

参考例句：

• This is a snake's poison gland.这就是蛇的毒腺。
• Her mother has an underactive adrenal gland.她的母亲肾上腺机能不全。

2 prone   

adj.(to)易于…的，很可能…的；俯卧的

参考例句：

• Some people are prone to jump to hasty conclusions.有些人往往作出轻率的结论。
• He is prone to lose his temper when people disagree with him.人家一不同意他的意见,他就发脾气。

3 sperm   

n.精子，精液

参考例句：

• Only one sperm fertilises an egg.只有一个精子使卵子受精。
• In human reproduction,one female egg is usually fertilized by one sperm.在人体生殖过程中，一个精子使一个卵子受精。