各位大佬,刚才做题发现go to Hong Kong和come to Hong Kong请问这两者有啥区别.例句分别是:Both of them went to Hong Kong ten days ago.但是我填写的是Both of them came to Hong Kong ten days ago.请问这两者有啥区别,还是说come to后面不能加城市或者地区?!谢谢各位大佬解答!