您要查找的是不是：
- The study of viruses and viral diseases. 病毒学一种病毒和病毒性疾病的研究
- Many dangerous diseases are carried by insects. 许多危险的疾病是由昆虫传播的。
- penis diseases 阴茎疾病
- Most diseases could be wiped out. 大多数疾病是可以被消灭的。
- An object used as a substitute for an erect penis. 阴茎替代物一种用来作勃起阴茎代替物的物体
- Certain ear diseases can affect one's equilibrium. 某些耳疾会影响人的平衡能力。
- Some diseases are present by heredity. 有些疾病是由于遗传导致的。
- Dr. White specialized in children's diseases. 怀特医生专治儿科疾病。
- Many diseases are caused by bacteria. 许多疾病是由细菌引起的。
- The study of sexually transmitted diseases. 性病学对性传染疾病的研究
- The cause of this diseas is kept unknown sa far. 造成这种疾病的原因迄今几乎一无所知。
- This suggest that NIDDM is a heterogoneous diseas. 认为NIDDM是一种异质性疾病；
- Insertion of the penis into the vagina or anus. （性交时）将阴茎插入阴道或肛门
- When pee, the penis has painful feeling, be sick? 在小便时,阴茎有痛的感觉,是有病的吗?
- The penis is usually in a flaccid state. 阴茎常处于萎软状态。
- How to make the penis more brawny gigantic long? 如何让阴茎更加粗壮巨长?
- How to maintain oneself penis ah? 怎么保养自己的阴茎啊?
- The penis not development, what reason be? 阴茎不发育，是什么原因啊？
- My penis has 15 centimeters only, normal? 我的阴茎只有15厘米，正常吗？
- This old man is a leading authority on wheat diseases. 这位老人是小麦病虫害方面的权威。
