跷蹊

zhè jiàn shì hěn qiāo qī

这件事很跷蹊。

There's something fishy about it.

jué de qiāo qī

觉得跷蹊

feel dubious

wǒ jué de tā de huà yǒu xiē qiāo qī

我觉得他的话有些跷蹊。

There's something fishy in what he said.