railroad train
火车
例句与用法：
A slope or gradual inclination, especially of a road or railroad track.
斜坡斜面或缓缓的倾斜面，尤指道路或铁轨的
Follow the railroad track about100 meter.
顺着铁路走大约100公尺。
A system of railroad track, together with the land, stations, rolling stock, and other related property under one management.
铁路系统铁路轨道和土地、车站、车辆和其它属于同一部门管理的相关财产的体系
词形变化：
名词: railroader | 动词过去式: railroaded | 动词过去分词: railroaded | 动词现在分词: railroading | 动词第三人称单数: railroads |