n.追踪,追查,描摹,摹图
v.描绘( trace的现在分词 ),追溯,发现,跟踪
She had spent years trying to track down her parents.
她已经花了好多年时间试图追寻父母的下落。
Dozens of miles of railway track have been torn up.
好几十英里的铁轨被毁坏了。
Across the river the railway track ran up to the pithead.
铁轨跨过这条河直达矿井口。