To take into the mind and understand, typically with speed:迅速理解：了解到或理解，尤指很快地理解：picked up on the new approach and applied it to the project.很快地了解了新方法并把它应用于这个项目中
To notice:注意到：learned to pick up on his superior's moods and act accordingly.学会注意上级的情绪并见机行事