考研英语高频词汇complain [kəmˈpleɪn] v.抱怨;投诉<历年真题考查频次:27次>真题复现1: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.(2003年英语一第三篇阅读理解P2)