2????14????,???,???????,????,????“?”??????????,????????????????????,?????“School Walk”???????(???? ?????)
??:?????
??????????????:??????
4?1?!??????????????????!
????:????????????3????????
??????????????????????????
???????????????????
???????????????????
?????????????????????
????:?????????????????
????:??“??????”?????????
??2?????????0.4%
??:“????”??????????
????????????????
??????????????3???
??????:?????????????
???????“????”?IPO????
????????????????
??-???????????????2-1??
???????????????:????
??:???????????????????
????????????????
4?1?!??????????????????!
??????????????:??????
????????????????????
??-4???????????1-2??????
?????20????????????????