that trains dogs to sniff for wild animal feces also called scat.

VOA: standard.2010.02.22

You're on the phone with this guy all the time and you sniff something out, you can maybe stop it.

如果你和某人经常通话联系,并且嗅出了问题,你也许就不会借钱给他们了

耶鲁公开课 - 金融市场课程节选

One may sniff traces of that air in the Funhouse.

也许人们可以在开心屋中闻到这些气息。

耶鲁公开课 - 1945年后的美国小说课程节选

I took my role to sniff that out, and to make sure the president heard 2 and 4 on an important issue, and was able to make the decision himself.

我的作用就是发现这些，保证总统可以听到2和4这两个观点4,在一些重要问题上，然后他能自己做决定。

普林斯顿公开课 - 国际座谈会课程节选

So, if you only get a sniff of the tear gas in Barth, here you get a whole draught full of it.

如果你在Barth问到了一点催泪瓦斯的气息，那么你在这将感受到满是它的气味。

耶鲁公开课 - 1945年后的美国小说课程节选