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

2?????

3???????????

4?????????app

5???????

?????????11??27?????????? (???? ?????????)?????27????????????????????????,??????,???????????,????????????????????????12.7?????????15?????

11?27?,?????????????“???? ?”???????????? ?? ????????

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

???????????????????????????????,“???”????????,??????????4.7????????????????,???3.5?????????3.4?????????????????????,???“???”??,????(??)

??????:???