f. 跑步, 竞赛, 轨道, 路线, 职业, 学业, 人生, 行, 列
pl. 赛跑
n. run; race, dash; chase; line; ladder; beam, horizontal support or joist used in building frames; stroke; route, track; career, profession; course of studies; course of life, the path of life

翻译中,请稍等...
( 查询一个长句试试看:-)