But many shippers complain that for heavy bulk commodities traveling long distances, such as coal, chemicals, and grain, trucking is too costly and the railroads therefore have them by the throat.

• 但许多客户却抱怨说，对于长途运输之大宗货物来说，如煤炭，化学制品和粮食，公路运输成本太高，因此铁路公司就会掐他们之脖子。