trackman wheel火星轨迹球;罗技;罗技火星轨迹球
college trackman高校田径运动员
TrackMan Marble罗技土星
incline trackman斜井维修工
TrackMan Marble FX罗技金星
trackman-trackmen铁路护路员
Cordless TrackMan FX轨迹球
CORDLESS OPTICAL TRACKMAN无限水星轨迹球
N(名词) a workman who lays and maintains railway track 护路工人 (Also called (in Britain and certain other countries) platelayer) [美国英语]