????:1???????????:???????

2?????????

3??????

4????app

5????

???1???????8??????? ????????????(CNN)???????????,??1?????7??,?????,?????

?:???

???,???,???????????????,????????????????????,?“?”????,???“????????”???????????????????????????????

???,??,????,???????????????????????????????,???????????????????????????????

????????,?,????????????????????,???“??????”,??????

??????????????????????,????????????????????????????????????????7???,???

???????????:???