* The difference between catching up and catching up.

Keep up: follow closely; Keep up, don't fall behind; Side by side.

Catch up: catch up; Catch up; Settle old scores with; Made ... finally tasted the bitter fruit.

2. Differences in usage

Keep up? It's about your academic/work level. (commendatory)

Catch up: it means to catch up. (Neutral) (or self-deprecating)

Example:

1. keep up?

She? Used to be. Skipping rope? Where to? Keep? Up? With what? He ... ?

She skipped behind him.

She? Has it started? Where to? Walking? Faster? But? What? Lengthened? His? Step? Where to? Keep? Up? With what? She?

She began to quicken her steps, but he also quickened his steps to follow her.

2. Catch up

Me? Can't you? Catch? Up? With what? He ... ?

I could never catch up with him.

Really? Or? Time? Where to? Catch? Up? With what? They ... ?

There is still time to catch up with them.

We will? Do what? Our? The best? Where to? Catch? Up? With what? That? Advanced? The world? Level. ?

We will try our best to catch up with the advanced world level.

Extended data synonym parsing:

keep pace with

Keep up; Keep in sync; Catch up.

What about you? Walking? Also? Fast? For what? Me? Where to? Keep? Pace? With what? You ?

You walk so fast that I can't keep up.

Provided by jukuu

Me? Can't? Keep? Pace? With what? What about you? Where is it? This? Rate. ? Going? Slow down. ?

I can't keep up with you at this speed, so walk slowly.

we? Must? Keep? Pace? With what? That? New? Development? Yes? Modern? Science? Research. ?

We must keep up with the new development of modern scientific research.