????:2024-09-21 16:45:09 ??:????
????:???????:?????????
????????????????9??????????19? (????????????????????? ??)?9???19??,?“??”(Sigma Geography),???
9??19?????????,??????????????????“?”?????????? ????????????????? ???????,???????????,??????????????????????????,???????????“????????”????????????????????????????????“?????”“???”“????????????????”“???????????????”???,?????????????????????????????????????
?????,“???????????”????????????????,???????(???)
??:???????