There was definitely something fishy going on.

定当时有可疑事情在进行中。

It all sounds very fishy to me.

所有这些在我听起来都很可疑。

I'm convinced there is something fishy going on.

我确信有可疑事在发生。

It's a fishy story that a tramp deposited quite a lot of money in the bank yesterday.

"很难相信,一个流浪汉昨天在银行里存了不少钱。"

There's something fishy about it.

这里面有鬼。;这事有点古怪。