make up 和解，言归于好。
make sth up编造（借口、故事等）。= to invent something, such as an excuse or a story, often in order to deceive
如made up an excuse编造借口。

【例句】
We often quarrel but we always make it up soon after.
我们常吵架，但总是很快就和好了。

My dad was always really good at making up stories.
我爸爸一直很善于编故事。