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

2???100????????

3???????

4???????app

5????????

?????????????????????2??????????16? ?:????????????????,??????15???,?????,?????????1????5?????????

???????????????????,????????????????16?,???????????????????,?14???????????????????????42???????,???????????????

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

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

?,???????????????2020?????,??,???????????4??????????????,???(???) ????:???