Undoubtedly all great players know                                                                      Their roles accurately ...                                                                                           No one goes beyond                                                                                                 One's role anytime ...                                                                                               All roles are planned greatly                                                                                    To suit themselves ...                                                                                                 Any violation of one's role ,then                                                                              It will inevitably lead to one's end ...                                                                       Crossing red lines is not allowed anytime ...