freights

例句:

• During the depression, I used to hop freights at least once a month.
  大萧条时期, 我一月至少偷偷搭乘一次货运列车.
  
• The tramp hopped freights more than once.
  那个流浪汉不止一次地偷偷搭乘货运列车.
  
• Kunming - bound train passes two freights on the route to Chengdu.
  一列开往昆明的客车跨越了两列开往成都的货车.