??????????????7?4???(??????? ????????? ?????????????????????)???????????????“city??city??????”“??????city?”?,?4?,?????????????????????,??

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

“??????????????,??”???????????

???????,???,???????????????????5?,???1200?,??700???;?????,?????57%?

“???????????,???????????????????????,?????????????!”?????(???????) ????????:??????? “?????”_????

?? ?“city??city”?????:???????

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

2???????

3???98?

4????????

5??????V

??????????????7?4???(??????? ????????? ?????????????????????)???????????????“city??city??????”“??????city?”?,?4?,?????????????????????,??

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

“??????????????,??”???????????

???????,???,???????????????????5?,???1200?,??700???;?????,?????57%?

“???????????,???????????????????????,?????????????!”?????(???????) ????????:???????