gōng yuán / lǐ / hái zi men / bǐ sài / shéi / néng / bǎ / tiě huán / gǔn / de / yòu kuài / yòu yuǎn

公园里，孩子们比赛谁能把铁环滚得又快又远。

In the park, the children competed to see who could roll an iron ring the fastest and farthest.