bǐ / sài / kāi / shǐ / qián / mǎ / fū / zǐ / xì / jiǎn / chá / le / měi / pǐ / mǎ / de / zhuàng / tài

比赛开始前，马伕仔细检查了每匹马的状态。

Before the competition began, the groom carefully checked the condition of every horse.