To be ignorant of one's ignorance is of the ignorant.每天进步一点点----不知道自己的无知,是无知者的通病.They appear to be ignorant of what is going on here.他们对这里发生的事似乎一点也不知道.She appears to be ignorant of this fact.她似乎不知道这件事实....

v.不知道，不识...

be ignorant of的音标：be ignorant of的英式发音音标为：[bi: 'iɡnərənt ɔv]be ignorant of的美式发音音标为：[bi 'ɪɡnərənt ʌv]...