名詞 police dog:

1. any dog trained to assist police especially in tracking

1. All the time he was in the city the secret police dogged his steps.
   他在該市逗留期間一直受到秘密警察的跟蹤。
2. Lead the way with the police dog; he'll soon smell the fellow out.
   帶著警犬領(lǐng)路吧，它馬上會(huì)把好家伙的行蹤嗅出來(lái)。