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be well up on

be well up on something

to have a good knowledge of a subject I'm not very well up on Ancient Greek history.
See also: on, up, well

Common Names:

NameGenderPronouncedUsage
TomaŽ-Slovene
Vinson['vinsn]
Hena-Yiddish
JerrodJER-ədEnglish
Doriane-French
BlaineBLAYNEnglish
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