Bedeutung von “keep up” im Essential American English Dictionary

keep up

phrasal verb with keep us /kip/ verb past tense and past participle kept

to stay with someone who is moving forward by moving as quickly as that person:

She was walking so fast I couldn’t keep up with her.

to increase as quickly as something or someone else:

Prices are rising fast and wages aren’t keeping up.

to be able to understand or deal with something that is happening or changing very fast:

It’s important to keep up with international news.

(Definition von “keep up” aus dem Webster's Essential Mini Dictionary © Cambridge University Press)