jìng / zǒu / bǐ / sài / yāo / qiú / yùn / dòng / yuán / bǎo / chí / zhì / shǎo / yì / zhī / jiǎo / jiē / chù / dì / miàn

竞走比赛要求运动员保持至少一只脚接触地面。

Race walking competitions require athletes to keep at least one foot in contact with the ground.