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Definitions4 characters
bo2 gu3 tong1 jin1
conversant with things past and present/erudite and informed
Usage•••frequent
Pronunciations

As word

1
bo2
conversant with things past and present/erudite and informed
2
gu3
conversant with things past and present/erudite and informed
3
tong1
conversant with things past and present/erudite and informed
4
jin1
conversant with things past and present/erudite and informed