Alan took the reins and the small horse started trotting.

艾伦抓住缰绳，小马开始小跑起来。

《柯林斯英汉双解大词典》

Seated in the carriage, watching the horse trotting amongst the stream of vehicles, it really was an unforgettable experience.

坐在马车里，看着马在车流中小跑前行，这真是一次难忘的经历。

youdao

The horse was trotting through the woods.

这匹马在森林中小跑着。

youdao

The race card at each meeting features flat racing, winter-style trotting and the local speciality, skijoring -- an awkward combination of horse, human and skis which is a clear crowd favorite.

CNN: Cool racing: Horses battle on snow