attack dog

• 经训练能按命令攻击的狗；比喻受雇或受指使、态度咄咄逼人、用于恐吓他人的打手，常见于政治或商业语境。

A dog trained to attack on command, or figuratively, a person who is aggressive, confrontational, or used to intimidate others, often in a political or business context.

1. Trained aggressive dogB1formal

   A dog that is specifically trained to attack or guard, often used by police or security.

   警犬

   • The police used an attack dog to subdue the suspect.
   • Attack dogs are often trained to respond to specific commands.
   • The security company employs attack dogs for night patrols.

2. Aggressive personB2informal

   A person who is fiercely aggressive, confrontational, or critical, especially in a professional or political context.

   攻击犬

   • The politician hired an attack dog to discredit his opponents.
   • She is known as the company's attack dog, always ready to argue.
   • The lawyer acted like an attack dog during the cross-examination.