单词学习：self-importance 名词 (抽象名词，描述人的特质或态度)
self-importance
/ˌself ɪmˈpɔːtns/
自大，自负，妄自尊大
His constant boasting about his achievements revealed a deep sense of self-importance, which made it difficult for 顾老师 to have a genuine conversation with him.
他不断吹嘘自己的成就，暴露出一种深深的自负感，这让顾老师很难与他进行真诚的交谈。
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