孩子在美国和中国出入境时应该分别出示哪个证件? 同时出示两个证件会不会有麻烦?越想越糊涂,请有经验的指教。多谢!
-Onlt need to show the 旅行证 to enter China and only use it to go out of China also. Then, only use the US passport to enter US.