天天留学英语：一词五例:ignorance (无知;不懂)
Knowledge makes humble, ignorance makes proud.
博学使人谦逊,无知使人骄傲.
Ignorance of the law excuses no man.
[谚]不知法不能作为免罪的口实.
keep in ignorance
使无知; 使不明真相
plead ignorance
声称不知
Where ignorance is bliss, it is folly to be wise.
[谚]该糊涂的时候就要糊涂; 难得糊涂.
