sniffer dog

noun

1. （训练来嗅查毒品或炸药的）嗅探犬
   a dog that is trained to find drugs or explosives by smell

1. (嗅找炸药或毒品等的)嗅探警犬
   A sniffer dog is a dog used by the police or army to find explosives or drugs by their smell.

1. The electronic sniffer dog represents one of the latest developments in the area of smell technology.
   这种设备代表着嗅探技术领域最新的成就之一。
2. The sniffer dog, who had achieved fabulous feats for the police, was on high alert and remained prick-eared.
   那头曾替警方立下不了汗马功劳的缉毒犬，一直竖起耳朵，保持高度警觉。