他总是在背后说别人坏话，真让人恶心。

Tā zǒng shì zài bèihòu shuō biérén huàihuà, zhēn ràng rén ěxīn.

He always speaks ill of others behind their backs; it's really disgusting.

坐船时间太长了，我有点头晕恶心。

Zuòchuán shíjiān tài cháng le, wǒ yǒudiǎn tóuyūn ěxīn.

The boat ride was too long, and I feel a bit dizzy and nauseous.

他一看到血就觉得恶心。

Tā yí kàndào xuè jiù juéde ěxīn.

He feels sick as soon as he sees blood.