Rangers' first bullet should be non- lethal , like rubber or empty , so as to avoid similar peter two-way tragedy.

Rangers' first bullet should be non- lethal , like rubber or empty , so as to avoid similar peter two-way tragedy.巡警第一颗子弹应该是非致命性的，像橡皮或者空的，以免造成类似peter的双向悲剧。