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》

I realized that it was a small mistake which was made by my mother, but somehow the breathless feeling was so strong that it made me very angry.

我意识到这是母亲犯的一个小错误，但不知为何，那种喘不过气的感觉十分强烈，因此我非常生气。

youdao

By the time I woke up from this, my most recent dream, my heart was racing and I felt breathless.

当从我这最近的一个梦中醒来时，我的心脏跳得飞快，感觉像要窒息一样。

youdao

"I get very breathless, which is a pain in the backside, " he told the Daily Mail.

BBC: Obituary: Richard Briers

And I know there was breathless attention by the media about these arrests and it was constantly on the news networks.

WHITEHOUSE: Press Briefing

No breathless cry, no hand on my shoulder when I reached the sidewalk.

NEWYORKER: Amundsen