有人给你介绍了一桩特别划算的买卖，说得天花乱坠，可你总觉得不对头，后来的事情证明你的感觉确实正确。这个“不对头”就可以用 to smell fishy 来表示。

新鲜的鱼营养很丰富，味道又鲜美。可惜的是，鱼很容易变质，时间放长了，它就会发臭。To smell fishy的意思就是在某一件事情上你感到不太对头，似乎有人在进行欺骗，这时候你就可以说“It smells fishy.”

我们现在来举个例子：

Somebody offered to sell me some beach property in Florida at a good cheap price. But the deal smelled fishy so I went down to take a look. Sure enough, every time the tide came in, the land was under three feet of water.

有一个人要把佛罗里达州海滨的土地卖给我，价钱很便宜。但是，我总觉得这笔交易有点不对头，所以就到那里去看了一看。果然，每当潮水来的时候，这块地就被三英尺深的水淹没了。

下面这个例句是一个人在报上看到出售旧汽车的广告，价钱实在便宜，便宜得都让人觉得不太对头了。你猜是怎么回事？

It appeared to be a real bargain, but I smelled something fishy because the man was in such a hurry to sell it. I was right--later on I found out the car was stolen.

价钱可真是便宜，可是这人那么急急忙忙要卖掉让我感到不太对头。我还真是没错，后来我才发现那辆车是偷来的。