刨根问底

tā jiù ài páo gēn wèn dǐ

他就爱刨根问底。

He's never satisfied until he gets to the bottom of things.

jiē shòu miàn shì de rén xū yào zhǔn bèi hǎo huí dá yī xiē páo gēn wèn dǐ de wèn tí

接受面试的人需要准备好回答一些刨根问底的问题。

Interviewees need to be ready for some searching questions.