Have you ever loved someone so much you'd give an arm for 你有过爱一个人爱的可以牺牲你的一切吗 Not the expression,no,literally give an arm for 不是比喻 不 而是真的要牺牲自己的一切 When they know they're your heart 当他们知道他们是你内心最重要的人 And you know you are their armour...