Not the expression,no,literally give an arm for 不是惯用表达法,不,确实地捐赠一只胳膊 When they know they're your heart 当她们知道她们是你的心肝 And you know助额造you are their armour 而你也知道你是她们的铠甲 And you will dest重机画最以低两庆远又roy anyone who would try to harm'em ...