溯源
sù​yuán

investigate origin

溯源 sù​yuán
investigate origin verb
to investigate the origin or historical root of something
trace upstream verb
to trace a river upstream back to its source

Frequency
Movie subtitles
0.270 per million appears in 0% of films
Written text
0.477 per million

Cross-References

Has variant

Sources
Definitions
CC-CEDICT
Frequency data
SUBTLEX-CHBCC Corpus (BLCU)