hearing dog
noun/ˈhɪərɪŋ dɒɡ/
/ˈhɪrɪŋ dɔːɡ/
- a dog trained to help a person who cannot hear well by making them aware of sounds such as the ringing of a phone or a doorbell
一只经过训练的狗，可以通过让听力不好的人意识到电话铃声或门铃等声音来帮助他们