railroad freight rates

例句：

1. 1. The railroadfreight rates have increased significantlydue to the recent economic downturn.
   由于最近的经济衰退，铁路货运费率显著上涨。
2. 2. The company has announced a new ratefor railfreight, which will affectall shipments.
   该公司已宣布新的铁路货运费率，这将影响所有货物的运输。
3. 3.The railway freight rates are based onthe distance and weight of the goods beingtransported.
   铁路货运费率基于货物的运输距离和重量。