One way for Partoria to reduce highway deaths would be to require shippers to increase their use of triple-trailer trucks.
对 Partoria 来说，减少高速公路死亡人数的一种方法是要求托运人增加使用三节车厢的卡车。
3
Many shippers complain that for heavy bulk commodities traveling long distances, such as coal, chemicals, and grain, trucking is too cost1y and the rai1roads therefore have them by the throat.