I felt my heart beating faster.

我感觉心脏跳得更快了。

《柯林斯英汉双解大词典》

The sight of her set his heart beating faster.

他一见到她，不由得心就怦怦直跳。

youdao

I felt my heart beating faster when I entered the lonely house.

当我走进这幢孤零零的屋子时，我感应我的心跳增速。

youdao

When this happens, the heart attempts to fix the situation by beating harder and faster.

VOA: special.2009.07.14

Her heart is beating a little faster, her palms are beginning to sweat, her breath is coming a little shorter than it otherwise would.

她的心跳开始加速，掌心开始冒汗，呼吸变得短促。

耶鲁公开课 - 心理学导论课程节选

In a person whose heart is intact, "the brain will tell the heart, 'Let's go, start exercising, let's start beating faster, ' " Kobashigawa said.

CNN: Heart transplant patients push physical limits at Ironman