A zài B shàng miàn. A is on the top of B.
A zài B lǐ miàn. A is inside of B.
A zài B xià miàn. A is below B.
A zài B páng biān. A is on the side of B.
A zài B qián miàn. A is in front of B.
A zài B hòu miàn. A is behind of B.
A zài B hé C de zhōng jiān. A is between B and C.