megalomania
n. [内科] 夸大狂;狂妄自大
例句
Early success may lead to megalomania.
少年得志可能导致妄自尊大。
Taxpayers bear the cost of guaranteeing this fruit of megalomania.
承保这一自大狂成果的费用由纳税人负担。
He is very bright. He helps me a lot, to not have any fits of megalomania.
他很聪明,他帮了我很多,他帮我不会变成自大狂。