He was tingling with life and also top-heavy with conceit.
他十分兴奋，跃跃欲试，又自负得得意忘形。
Everything he says is tinctured with conceit.
他说的话都带有自负的意味。
"You conceit," she exclaimed, with frightful sarcasm; "of course I did nothing!"
“你这个自大鬼，”她讥讽地叫道；“我当然什么也没做！”
Public apathy combined with the conceit of the new ruling class, to deliver a particularly brutal humiliation to Rafsanjani, barred apparently not for his political views, but for the rather less dignified reason that the members of the Guardian Council thought Rafsanjani too old to be able to bear the burden of office.
With Apple, the conceit of perfection has market value.
ENGADGET: Editorial: A conciliatory Apple would be real innovation
For a time, we all ignored the way 100 years of history told us it was supposed to happen, and bought the conceit that with hard work and modern training players could, and should, experience exponential gains as they hit 33, 36, even 39.