查询结果:

n. 不知道;无知,愚昧

拆分: in-不,无→n脱落→i-不,无 + -gnor-知道 + -ance名词词尾   

短语:
Ignorance of the law excuses no one; Ignorance of the law excuses no man. [谚]不知法不能作为免罪的口实。  
from ignorance; out of ignorance; through ignorance 出于无知  
keep in ignorance 使无知;使不明真相  

例:
Many lives are lost through ignorance. 许多人由于无知而丧命。 
There is still widespread ignorance about this disease. 仍有很多人对这种疾病不了解。 
The sisters lived in total ignorance of each other. 姐妹俩对彼此的存在一无所知。 
We are in complete ignorance of his plans. 我们完全不知道他的计划。 
He acted in ignorance of basic procedures. 他对基本程序一无所知就行动了。