Meaning of dì shang:
dì shang
地上
Preposition
on the ground
hái zi men zài dì shang wán shuǎ.
孩子们在地上玩耍。
The children are playing on the ground.
Adverb
on the floor
Xiǎo māo zài dì shang wán qiú.
小猫在地上玩球。
The kitten is playing with a ball on the floor.