1.TTRthe metal tracks in the road, used by trams 电车轨道
2.informalDST the two parallel lines at the edge of a tennis court 〔网球场的〕边线
Examples from the Corpus
tramlines• By leaving the tramlines, which were still greenish, he had a sample at 16% moisture.• The Manchester Metro Link uses existing rail track for part of its journey, switching to tramlines on city centre streets.