中文翻译与英英解释

【生物学】生源说，【医学】病菌说，微生物说。

germ:    n. 1.微生物，细菌，病菌，病原菌。 2.【生物学】幼 ...

theory:    n. 1.理论，学理，原理。 2.学说，论说 (opp. ...

(medicine) the theory that all contagious diseases are caused by microorganisms

例句与用法

Little real understanding of the germ theory can be ascribed to surgeons .
外科医生很少对病菌理论真正有所理解。

For example : the invention of the microscope led to the discovery of germs ; eventually , the germ theory of disease made possible the curing of many ills for which no effective treatment had ever before been know
例如：显微镜的发明致使细菌得以发现；最后，病菌理论使许多之前无法得到有效治疗的病得以治愈成为可能。

The introduction states that the audience is the high - school student , but this reference also provides an excellent background for college students and adult library patrons researching topics such as germ theory , boolean algebra , or the invention of the typewriter
引进国观众是高校学生，但这一提法，也提供了一个很好的背景，为大学生和成人图书馆食客研究的课题，如胚芽理论，布尔代数，或发明的打字机。