小林每天跑五公里。
Xiǎo Lín měi tiān pǎo wǔ gōnglǐ.
Xiaolin runs five kilometers every day.
easy
张磊和马丽一起骑车十公里。
Zhāng Lěi hé Mǎ Lì yī qǐ qí chē shí gōnglǐ.
Zhang Lei and Ma Li ride bikes for ten kilometers together.
easy
周玲走了三公里去学校。
Zhōu Líng zǒu le sān gōnglǐ qù xuéxiào.
Zhou Ling walked three kilometers to school.
easy
陈丽希望下个月能跑完二十公里的马拉松。
Chén Lì xīwàng xià gè yuè néng pǎo wán èrshí gōnglǐ de mǎlāsōng.
Chen Li hopes to finish a twenty-kilometer marathon next month.
medium
吴刚告诉我，他在一个星期内步行了超过三十公里，这让我感到非常惊讶，因为他平时不怎么运动。
Wú Gāng gàosù wǒ, tā zài yī gè xīngqī nèi bùxíng le chāoguò sānshí gōnglǐ, zhè ràng wǒ gǎndào fēicháng jīngyà, yīnwèi tā píngshí bù zěnme yùndòng.
Wu Gang told me that he walked more than thirty kilometers in a week, which surprised me greatly, because he usually doesn't exercise much.
hard