railroad siding英 [ˈreɪlrəʊd ˈsaɪdɪŋ]美 [ˈreɪlroʊd ˈsaɪdɪŋ]网络 铁路侧线英英释义nouna short stretch of railroad track used to store rolling stock or enable trains on the same line to passSynonym:sidingturnoutsidetrack双语例句