rolling stock

noun
🔊/ˈrəʊlɪŋ stɒk/
🔊/ˈrəʊlɪŋ stɑːk/
[uncountable]
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  1. the engines, trains, etc. that are used on a railway(铁路上运行的)全部车辆(包括机车、车厢等)
    • The rail company is investing in new rolling stock.该铁路公司正投资购买新的车辆。
    Topics Transport by bus and trainc2