?? ?????50?????????????
![](https://image.chezhanri.com/2019/0709/20190709110029656.jpg)
????:1????????:??????
2?????
3???????
4????????
5??????
?????8?6?????? (????? ??) ???6?,??50??,??????????????,???????????????????4:1??,?????
![](http://i2.chinanews.com.cn/simg/cmshd/2024/08/07/b9402b8d9d76439197d319ce316d8bf0.jpg)
?????8?6?????? (????? ??) ???6?,??50??,??????????????,???????????????????4:1??,?????
????:1????????:??????
2?????
3???????
4????????
5??????
?????8?6?????? (????? ??) ???6?,??50??,??????????????,???????????????????4:1??,?????