例句與造句

1. The germ theory of infection was just a few decades old.
2. At the time however, the germ theory of infection had not been developed and Semmelweis'ideas ran contrary to key medical beliefs and practices.
3. These " putrid miasmas " were thought by many to cause the spread of " contagion " and " infection "  both words used before the germ theory of infection.
4. These " putrid miasmas " were thought by many to be responsible for the spread of " contagion " and " infection "-both words used before the germ theory of infection.
5. He was disturbed by these mortality rates, and eventually developed a theory of infection, in which he theorized that decaying matter on the hands of doctors, who had recently conducted autopsies, was brought into contact with the genitals of birthgiving women during the medical examinations at the maternity clinic.
6. It's difficult to find theory of infection in a sentence. 用theory of infection造句挺難的