Это слово definitions, относящееся к keep-up. Щелкните любое слово, чтобы перейти на страницу сведений о нем. Или, перейти к определению keep-up.
0 to move at the same speed as someone or something that is moving forward so that you stay level with them
1 to increase or make progress at the same speed as something or someone else so that you stay at the same level as them
2 to be able to understand or deal with something that is happening or changing very fast