heart beating和heart was beating有什么区别?什么时候可以省略BE动词的?

my heart was beating quickly. be still my beating heart with beating a heart 和with a beating heart 哪个是正确的 A heart beating for Listening to my heart beating. My beating heart belongs to My heart is beating with hers,it's beating with he的中文意思 my heart is beating with hers 是哪首歌的歌词? my heart is beating with hers 这首歌是谁唱的? beating beat 什么区别 My　heart it's beating with his ... My heart...is beating with hers.