ego trip
US /ˈiː.ɡoʊ ˌtrɪp/
UK /ˈiː.ɡoʊ ˌtrɪp/

1.
自我膨脹, 自大
an act or period of self-indulgent behavior, often motivated by a desire to impress others or boost one's own self-importance
:
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His long speech was just an ego trip, full of self-praise.
他冗長的演講只是一場自我膨脹,充滿了自我吹噓。
•
She accused him of being on an ego trip when he insisted on taking all the credit.
當他堅持要獨攬所有功勞時,她指責他是在自我膨脹。