動詞 infect:

1. communicate a disease to
2. contaminate with a disease or microorganism
   同義詞：taint
3. contaminate with ideas or an ideology
4. affect in a contagious way

1. Her cheerful spirits and bubble laughter infect the whole class.
   她那快樂的情緒和爽朗的笑聲感染了全班。
2. My right eardrum have become infect.
   我的右耳鼓已經(jīng)感染了。
3. The open wound soon became infected.
   裸露的傷口很快就受到了感染。
4. The young teacher infected the whole class with her enthusiasm.
   這位年輕的老師以她的熱誠感染了全班。

in.fect

v.tr.（及物動詞）
in.fect.ed,in.fect.ing,in.fects
To contaminate with a pathogenic microorganism or agent.
傳染：通過致病的微生物或媒介來傳染
To communicate a pathogen or disease to.
侵染：將病原體或疾病傳播給
To invade and produce infection in.
感染：侵入并發(fā)生感染
To contaminate or corrupt:
腐蝕：感染或腐化墮落：
例句：
envy that infected their thoughts; a society that was infected by racism.
妒忌污染了他們的思想；被種族主義污染了的社會

To affect in a contagious way:
使受影響：以感染的方式來影響：
例句：
.His fear infected me, and . . . I followed as fast as I could.(W.H. Hudson)
.他的恐懼感染了我，于是…我盡快地趕上去.(W.H.哈得孫)

來源：
Middle English infecten [to afflict with disease]
中古英語 infecten [被疾病感染]
from Latin onficere onfect- [to stain, infect] in- [in] * see in- 2 facere [to do] * see dhô-
源自 拉丁語 onficere onfect- [污染] in- [在…里] *參見 in-2 facere [做] *參見 dhô-