你究竟想怎么样？

Nǐ jiūjìng xiǎng zěnmeyàng?

What do you really want after all?

我都分不清究竟谁是女主角。

Wǒ dōu fēn bù qīng jiūjìng shéi shì nǚzhǔjué.

I can't tell who is the main actress after all.

他究竟做了什么让她那么生气？

Tā jiūjìng zuò le shénme ràng tā nàme shēngqì?

What did you say after all that made her so angry?