to the east,on the east,in the east的区别
问题描述：
to the east,on the east,in the east的区别
答
in the east 在.之内的东部.
to the east 在.之外（不紧密相邻）的东部.
on the east和.相邻的东部.
1. in表示A地在B地范围之内.如：
* is in the southeast of China.
2. to表示A地在B地范围之外,即二者之间有距离间隔.如：
Japan lies to the east of China.
3. on表示A地与B地接壤、毗邻.如：
North Korea is on the east of China.