回複：回複：都說中國人好欺負, 我看這裏的人都很牛啊

You have done enough -- 推開那個黑的衝出電梯， 然後回頭大罵.

If you want sue them, it is very hard to build a case, also your physcial action (推開 and 大罵) may bring trouble to yourself.

You have done a good job. Let it go. Be careful of the confrontations with the 2 since now.