n.自我中心，利己主义，自私自利

Egotism is the excessive focus on one's own desires and needs, often at the expense of others.
He showed egotistical tendencies by constantly boasting about his accomplishments to everyone around him.
Her egotism was evident in her refusal to accept any criticism or feedback from her colleagues.
The egotist believes their opinions and ideas are always superior, disregarding the views of others.
After winning the race, he couldn't help but exhibit his arrogant and egotistic behavior towards his defeated opponents.
His egotism led him to believe that he could single-handedly save the company from financial ruin.
She became increasingly egotistical as she climbed the corporate ladder, thinking only of her own promotions.
Egotism can manifest in people who always want to be the center of attention at social gatherings.
It's important to maintain a balance between self-confidence and humility, as unchecked egotism can damage relationships.
In his memoir, the author admitted to learning the hard way about the dangers of unchecked egotism in his personal life.
中文释义
自私自利是指过分关注自己的欲望和需求，常常忽视他人的利益。
他不断向周围的人吹嘘自己的成就，表现出明显的自我中心倾向。
她拒绝接受同事的批评，这显示了她的自大。
自我主义者坚信自己的观点和想法总是高人一等，无视他人的意见。
赢得比赛后，他对落败对手的傲慢和自我中心表现得淋漓尽致。
他的自大让他认为能独自挽救公司于破产边缘。
随着职位提升，她变得越来越自恋，只考虑自己的升迁。
在社交场合中，那些总是希望成为焦点的人可能显示出自我中心的一面。
保持自信与谦逊之间的平衡很重要，因为过度的自我中心会损害人际关系。
在自传中，作者承认他在个人生活中学到了不加约束的自我中心可能导致的教训。