“跳动”造句

我有点儿喘不上气，心脏咚咚地快速跳动着。
I was a little breathless and my heartbeat was bumpy and fast.

他听见低沉的心跳声，跳动的速度却更快了。
He heard his heart thump dully but more quickly.

他的心脏曾3次停止跳动。
His heart stopped three times.