Listen to the song.

大头儿子，小头爸爸，
Dà tóu érzi, xiǎo tóu bàba,
Big head son and small head father,

一对好朋友，快乐父子俩。
Yíduì hǎo péngyou, kuàilè fùzĭ liǎ.
a couple of good friends, happy father and son.

儿子的头大手儿小，
Érzi de tóu dà shǒur xiǎo,
The son has a big head and small hands,                

爸爸的头小手儿很大。
Bàba de tóu xiǎo shǒur hěn dà.
the father has a small head and very big hands.

大手牵小手，走路不怕滑。
Dàshǒu qiān xiǎoshǒu, zǒulù búpà huá.
They walk small hands in big hands without worrying about falling down.

走呀走呀走走走走，转眼儿子就长大！
Zǒu ya zǒu ya zǒu zǒu zǒu zǒu, zhuán yǎn érzi jiù zhǎngdà!
Walking along, the son will grow up soon!

啦啦啦…… 啦拉啦……转眼儿子就长大!
Lā lā lā… lā lālā…, zhuán yǎn érzi jiù zhǎngdà!
La la lā…la la lā…, the son will grow up soon!