就是

jiù shì

(emphasizes that sth is precisely or exactly as stated), precisely, exactly, even, if, just like, in the same way as

她就是老师。

tā jiù shì lǎo shī。

She is the teacher.

这就是我的狗。

zhè jiù shì wǒ de gǒu。

This is my dog.

人生就是不断的变化和成长。

rén shēng jiù shì bù duàn de biàn huà hé chéng zhǎng。

Life is about constant change and growth.

我早就看过了

wǒ zǎo jiù kān guo le

I've already seen it

我喝茶就好了。

wǒ hēchá jiù hǎo le。

I'm fine just drinking tea.

我这就去超市

wo zhe jiu qu chao shi

I right now go to supermarket

我这就去银行

wo zhe jiu qu yin hang

I right now go to the bank

我这就去机场

wo zhe jiu qu ji chang

I right now go to airport

我这就去做饭

wo zhe jiu qu zuo fan

I right now go to cook

你根本就不诚心

nǐ gēn běn jiù bù chéng xīn

You are not sincere at all