She finished the race panting heavily.

她跑完比赛气喘吁吁的。

《牛津词典》

One hand on the saddle , the other on the lever, I stood panting heavily in attitude to mount again.

我一手抓鞍座，一手抓杠杆，气喘吁吁地摆好了再次登上机器的架势。

youdao

Panting heavily, Lady wouldn't even accept duck-flavored treats, so Ms. Davison massaged her in the water.

WSJ: See Spot Swim: Remedial Lessons Put Pooches in the Pool