Have a sniff of this medicine—it smells revolting,doesn’t it?

一下这种药——它有一种令人作呕的味道,对吗?

The dog sniffed suspiciously at the stranger.

狗疑惑地着那个陌生人。

The offer is not to be sniffed at.

出价还算得过去。

Take a sniff at everything and distinguish the good from the bad.

对任何东西都要用鼻子一, 鉴别其好坏。

Come and visit our website and have a sniff around!

来看看我们的网站，好好浏览一下！

I sniffed the medicine before taking a spoon of it.

我了药, 然后服了一匙。