1.in表示A地在B地范围之内.如： Taiwan 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. 4.off表示“离……一些距离或离……不远的海上”.如： They arrived at a house off the main road. New Zealand lies off the eastern coast of Australia