ignorance

n.

无知，愚昧；蒙；

1. He tried to veil his contempt at my ignorance.
   他试图掩饰对我的无知的蔑视。
2. I guess ignorance must be a sin.
   我认为无知是一种罪。
3. I regret my ignorance on the subject.
   我对自己对这个课题的无知感到遗憾。
4. Knowledge makes humble; ignorance makes proud.
   [谚]知识使人谦虚，无知使人骄傲。
5. It is not good to trade on another's ignorance.
   利用他人的无知是不应该的。
6. Poverty and ignorance are the enemies of progress.
   贫穷和愚昧是进步的敌人。

Strategic Ignorance as a Self-Disciplining Device
Economics of Time and Ignorance: 1996 Intro Survey
Ambiguity Aversion and Comparative Ignorance
Strength Is Ignorance; Slavery Is Freedom: Managing Culture in Modern Organizations
STRENGTH IS IGNORANCE; SLAVERY IS FREEDOM: MANAGING CULTURE IN MODERN ORGANIZATIONS*
New venture survival : Ignorance, external shocks, and risk reduction strategies
Different methods are needed to propagate ignorance and variability
Immunologic 'ignorance' of vascularized organ transplants in the absence of secondary lymphoid tissue.
Immune surveillance against a solid tumor fails because of immunological ignorance.
Provision of antigen and CD137 signaling breaks immunological ignorance, promoting regression of poorly immunogenic tumors