Meaning of shí tou:
shí tou
石头
Noun
stone; CL:塊|块[kuai4]
Háizimen zài gōngyuán lǐ jiǎn shítou.
孩子们在公园里捡石头。
The children are picking up stones in the park.
Háizi men zài hé biān jiǎn dàole yī kuài xiǎo xiǎo de shítou.
孩子们在河边捡到了一块小小的石头。
The children found a small stone by the river.