A rein used to lead a horse along, especially when ridden by an inexperienced rider.
（尤指无经验骑手用的）牵马缰绳
Example sentencesExamples
It took us nine hours with three stops (and two miles on leading reins because of the rough and steep terrain), but the beauty and peace of the mountain scenery made it a magical day.
Definition of leading rein in US English:
leading rein
nounˌlidɪŋ ˈreɪnˌlēdiNG ˈrān
A rein used to lead a horse along, especially when ridden by an inexperienced rider.
（尤指无经验骑手用的）牵马缰绳
Example sentencesExamples
It took us nine hours with three stops (and two miles on leading reins because of the rough and steep terrain), but the beauty and peace of the mountain scenery made it a magical day.