Definition: a regular movement or sound, especially that made by your heart Level: B2
我把头靠在他胸前，但感觉不到心跳。
I put my head on his chest but I could feel no heart ___beat.
当她说“是的，我愿意嫁给你”时，我的心跳漏了一拍。
My heart missed a ___beat when she said, "Yes, I'll marry you."
过了一会儿，她开始呼气，数着自己心跳的次数。
She started to exhale after a moment, counting the ___beats of her heart.
