Korean translation of “up”
up adverb, preposition
go, walk, etc. up to someone/something B1 to walk directly towards someone or something until you are next to them
He came straight up to me and introduced himself.
be up to someone B1 If an action or decision is up to someone, they are responsible for doing or making it.
I can’t decide for you. It’s up to you.
be up to something informal B1 to be doing or planning something bad
What are you two up to?