keep up
US /kiːp ʌp/
UK /kiːp ʌp/

1.
跟上, 保持
to continue to be at the same level or standard as someone or something else
:
•
It's hard to keep up with the latest technology.
很難跟上最新的技術。
•
She runs so fast, I can't keep up.
她跑得太快了,我跟不上。
跟上, 保持
to continue to be at the same level or standard as someone or something else