你和丽丽，谁跑得快？

Nǐ hé Lìli, shéi pǎo de kuài?

(Between) you and Lili, who runs faster?

小狗在房子前面跑来跑去。

Xiǎogǒu zài fángzi qiánmiàn pǎolái pǎoqù.

The little dog is running around in front of the house.

他每天早上去公园跑步。

Tā měitiān zǎoshang qù gōngyuán pǎobù.

He goes to the park to run every morning.