be up to

頻度
難易度
phrase
B1

If something is up to someone, that person has the choice or duty to decide what to do.

You can choose to come with us or stay home; it will be up to you.

あなたは私たちと一緒に来るか、家にいるか選べます; それはあなた次第です。

translation

phr. 次第で