是指太过分了、太过火了. 做事都是有一定限度的.在《老友记》中,钱德吻了乔伊的女朋友,但他们是好朋友,钱德很愧疚,向乔伊道歉. I'm  sorry  I  crossed  the  line  ! 对不起,我过线了. Cross  the  line? You  not  only  cross  the  line, you  went  too  far, you  even  can't  see  the  line! 你过线了?你不仅过线了,你搞得太过份了,你连线在哪里都看不到了.
you have gone too far是离题了,还是太过分了?