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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
Abramson['eibrəmsn]
AssunÇÃO-Portuguese
Yan (1)-Belarusian
Neoptolemus-Greek Mythology (Latinized)
DonnieDAHN-eeEnglish
Toirdhealbhach-Irish
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