ignore的名词和形容词的意思

　　People don't like to ask questions for fear of appearing ignorant

　　人们不喜欢问问题，害怕自己会显得很无知。

　　I met some very ignorant people who called me all kinds of names.

　　我碰到了一些非常粗鲁的家伙，他们用各种脏话骂我。

　　Many people are worryingly ignorant of the facts about global warming.

　　许多人竟然不知道地球变暖的事实，实在令人担忧。