track down 追寻，查获，追捕到，追查出。track v.追踪，跟踪。
hunt down 追捕...直至捕获...。
【例句】
She had spent years trying to track down her parents.
她已经花了多年试图找到她的父母。
After many days, the hunters were able to track down the dangerous bear.
经过多天跟踪追捕，捕猎者们终于找到了那只危险的大熊。
【例句】
She had spent years trying to track down her parents.
她已经花了多年试图找到她的父母。
After many days, the hunters were able to track down the dangerous bear.
经过多天跟踪追捕，捕猎者们终于找到了那只危险的大熊。
