ignorant

/ˈɪɡnərənt/📚 7485 54 2四级六级考研托福
If you describe someone as ignorant, you mean that they do not know things they should know. If someone is ignorant of a fact, they do not know it. 无知的

adjective [原级]无知的,(对某事物)不了解的;<非正式>无礼的,粗鲁的;暴躁的,易怒的

People are sometimes described as ignorant when they do something that is not polite or kind.
不礼貌的

ignorant 出现在下面的课文中
Lesson 28 Patients and doctors
Lesson 34 Adolescence
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