to be quick on the uptake
01
(of a person) to understand things very quickly
例
During the training session, John proved to be quick on the uptake. He learned the software's features and functionality in no time.
to be slow on the uptake
01
(of a person) to have difficulty in understanding or comprehending something quickly or easily
例
He's been working on that math problem for hours and still has n't figured it out. He's definitely slow on the uptake when it comes to complex calculations.



























