1. 名詞
   tracker複數: 追蹤者, 跟蹤器
   追捕者
   循跡追蹤的動物
   拉纖者
   跟蹤雷達, 追蹤系統
   

   同義字詞
   imprint,trace,trail
   footpath,path,pathway,trace,trail
   course,line,path,pathway,route,steps,way
   

例句

1. There are only a few good trackers .
2. Use the trackers that you're requesting.
3. I almost got banned from many trackers .
4. Adidas makes fitness trackers in sneakers.
5. Fifty Bedouin IDF trackers were also used.
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