pán​gēn​wèn​dǐ

to get to the bottom of something

Senses

盘根问底/ 盤根問底 pán​gēn​wèn​dǐ to get to the bottom of something

to examine the roots and inquire at the base; to ask in detail until the truth is discovered

References

same_as 盘根问底/盤根問底 刨根问底/刨根問底
variant 盘根问底/盤根問底 盘根究底/盤根究底