up on [phrasal verb] [T] - to choose (something previously said) as being worth discussion or particular attentionOriginally only one newspaper picked up on the minister's statement, but by the end of the week it was making nationwide headlines.Can I just pick up on the point you made a few minutes ago about personal morality, Archbishop?
PICK
Meaning of PICK in English
Cambridge English vocab. Кембриджский английский словарь. 2012