adj.任性的；自我本位的；傲慢自尊的

He's so egotistical, always talking about himself and his achievements.
他非常自大，总是谈论自己和自己的成就。
Her constant need for attention is a clear sign of egotism.
她持续需要关注明显是自恋的表现。
The actor's egotistical behavior on set made it difficult for the crew to work with him.
那位演员在片场的自大行为让剧组人员很难与他合作。
His egotistical remarks left a bad taste in everyone's mouth.
他的自大言论让每个人都感到不悦。
She couldn't stand her boss's egotistical attitude anymore.
她再也无法忍受老板那种自大的态度了。
In his speech, he focused too much on his own accomplishments, revealing an egotistical mindset.
在他的演讲中，他过于强调自己的成就，显露出自大的心态。
The athlete's egotistical demeanor overshadowed his actual talent.
这位运动员自大的态度掩盖了他的真正才华。
It's hard to collaborate with someone who's so egotistical that they refuse to listen to others' ideas.
和一个如此自大、拒绝听取他人意见的人合作很困难。
His egotistical behavior led to a breakdown in communication within the team.
他的自大行为导致团队内部沟通破裂。
Despite her success, she remained humble, unlike her more egotistical colleagues.
尽管她取得了成功，但她依然保持谦逊，与那些更为自大的同事不同。