I was a little breathless and my heartbeat was bumpy and fast.

我有点上气不接下气,我的心跳不稳并且很快。

《柯林斯英汉双解大词典》

"Fascinating," I repeated, a little breathless, feeling like a man who discovers a buried treasure in his own backyard.

“太奇妙了。”我又说了一遍，有些喘不过气，好比有个男人在自家后院发现了一处宝藏。

youdao

Well, yes, a little breathless there for the actual effect of the CDS market is going to be around zero.

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Little was known about his new novel apart from the broad subject matter and setting, and a breathless prologue that was released as a teaser until Doubleday published it this week, with a first print run of four million copies.

WSJ: Dan Brown's Secret to Keeping Secrets