勒马绳

例句：

1. 1. The horse was led by a strong and experienced rider.
   这匹马被一位强壮且经验丰富的骑手带领。
2. 2. The horse's head was held firmly with the reins.
   马的头被缰绳牢牢地控制着。
3. 3. The horse was well-trained, and the rider could control it with the reins.
   这匹马训练有素，骑手可以用缰绳控制它。