“勒住马”的英语可以翻译为：ein in a horse ...

他走近拥挤的公路时勒住马.He reined his horse back as he approached the busy road.他勒住马,然后下马朝我们走来.Having pulled up his horse he dismounted and walked up to us.他们在邮局前面勒住马.They reined in in front of the post office....