pán​gēn​jiū​dǐ

to get to the bottom of something

盘根究底 盤根究底 pán​gēn​jiū​dǐ
to get to the bottom of something
to examine the roots and inquire at the base; to probe into the heart of a matter or investigate something thoroughly

Frequency

Written text
0.008 per million

Cross-References

Has variant

Sources

Frequency data
BCC Corpus (BLCU)