做生意难免会吃亏。

Zuò shēngyi nánmiǎn huì chīkuī.

In business, it’s hard to avoid taking losses.

你不觉得付出了那么多很吃亏吗？

Nǐ bù juéde fùchū le nàme duō hěn chīkuī ma?

Don’t you think you’re getting the short end of the stick after giving so much?

不懂协商的技巧容易吃亏。

Bù dǒng xiéshāng de jìqiǎo róngyì chīkuī.

Lack of negotiation skills can lead to disadvantages.