Railroads justify rate discrimination against captive shippers on the grounds that in the long run it reduces everyone's cost.

铁路公司对“被控”客户进行区别对待的依据是，从长远来看，这样做会降低所有人的成本。

10. Railroads justify rate discrimination against captive shippers on the grounds that in the long run it reduces everyone's cost.

10. 铁路公司认为对自营托运人实行费率歧视是合理的，因为从长远来看，这会降低每个人的成本。