on the rails

汉语翻译

例句：

1. There are many sharp spikes on the railings in the park.
   公园的栏杆上有很多尖头。
2. By taking a constant interest in his son's progress, he helped to keep him on the rails.
   他经常关心儿子的进步，促使儿子遵守法律和习俗。