13.

attack dog
攻擊犬

[雙語(yǔ)解釋]

A canine dog that has been trained to attack burglars, etc.
一種經(jīng)過(guò)訓(xùn)練的狼犬，用來(lái)攻擊竊賊等。

例句：

The officer's attack dog has saved his life many times.
這位警察的攻擊犬多次救了主人的命。