guard dog
US /ˈɡɑːrd dɔːɡ/
UK /ˈɡɑːrd dɔːɡ/

名词
1.
看门狗, 警犬
a dog trained to guard property or people
示例:
•
The factory employed a large guard dog to deter intruders.
工厂雇佣了一只大型看门狗来阻止入侵者。
•
Our new puppy is too friendly to be a good guard dog.
我们的小狗太友好了,不能成为一只好的看门狗。
在 Lingoland 学习这个单词