| 该 |
gāi bó | erudite / broad and profound / learned |
| 该 |
gāi | should / ought to / probably / must be / to deserve / to owe / to be sb's turn to do sth / that / the above-mentioned |
| 博 |
bó | (bound form) abundant; plentiful; extensive; wide / to win; to gain / to play; to gamble / learned; well-read / (bound form) doctoral degree (abbr. for 博士) / (bound form) blog (abbr. for 博客) |
| 博 |
bó | old variant of 博 |