究竟

zhè jiàn shì yī zhí nòng bù chū gè jiū jìng lái

这件事一直弄不出个究竟来。

This matter has been unable to figure out the truth.

guān yú cǐ shì nǐ yī dìng yào gěi wǒ jiǎng gè jiū jìng

关于此事，你一定要给我讲个究竟。

As to this matter, you must tell me the very whole story.

wǒ men dōu xiǎng zhī dào gè jiū jìng

我们都想知道个究竟。

We all want to know what actually happened.

wèn tí jiū jìng zài nǎ lǐ

问题究竟在哪里？

where is the problem exactly?

wǒ jiū jìng gāi zěn me bàn ne

我究竟该怎么办呢？

What on earth should I do?

nǐ zuì hòu nà jù huà jiū jìng shì shén me yì si

你最后那句话究竟是什么意思？

What exactly did you mean by that last remark?

tā jiū jìng jīng yàn fēng fù shuō de huà hěn yǒu dào lǐ

他究竟经验丰富，说的话很有道理。

After all, he is very experienced, and there is a lot of sense in what he says.

tā jiū jìng hái shi hái zi

他究竟还是孩子。

After all, he's still a child.

tā jiū jìng shì shēng shǒu

他究竟是生手。

After all, he is new to the job.