Definition

Examples

• 火车在铁轨上跑得很快。
  Huǒchē zài tiě guǐ shàng pǎo de hěn kuài.
  The train runs fast on the tracks.
• 工人们正在修理旧铁轨。
  Gōngrénmen zhèngzài xiūlǐ jiù tiě guǐ.
  Workers are repairing the old tracks.
• 这些铁轨已经用了很多年了。
  Zhèxiē tiě guǐ yǐjīng yòng le hěn duō nián le.
  These tracks have been used for many years.