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tracker dog

noun
🔊/ˈtrækə dɒɡ/
🔊/ˈtrækər dɔːɡ/
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  1. a dog that has been trained to help the police find people or explosives（受过训练协助搜寻人或炸药的）警犬，搜救犬
    • Police searched the area with a helicopter and tracker dogs.警察用直升机和跟踪犬搜寻了该地区。
    Topics Law and justicec2, Animalsc2