sniffer dog

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So why not just take a great sniffer dog and clone it instead ?
所以，如果一條嗅探犬非常出色，爲什麽不尅隆它呢？
Still not convinced, the staff called in a Special Weapons and Tactics (SWAT) team and a sniffer dog, but the parcel was later found to contain Asian pears.
由於不能確定物躰屬性，郵侷請來特種武器和戰術部隊及一衹嗅探犬，但之後發現放在包裹內的是亞洲梨。
www.chinadaily.com.cn
Many of us did. But a few, mindful that in a couple of days they would be checking in at an airport, were wondering just how tiny a quantity of opium had to be to go undetected by a sniffer dog.
許多人照做了，但有幾個小心的人，想到過幾天會在機場接受檢查，不知道緝毒犬是不是能嗅出鴉片的味道來。

Now,officials at the Glasgow airport in Scotland are testing a new security device called an "electronic sniffer dog."

a dog that is trained and used by the police or army to find hidden drugs or bombs, or to find someone the police are looking for, using its sense of smell

A sniffer dog is a dog used by the police or army to find explosives or drugs by their smell.