只有直的马，两边的缰绳才是均等使用的，伸屈自如并且顺从。

Only a straight horse is even on both reins, and with suppleness remains obedient.

youdao

只有直的马，两边的缰绳才是均等使用的，伸屈自如并且顺从。

Only a straight horse is even on both reins, and with suppleness remains obedient.

youdao