make up your mind
US /meɪk ʌp jʊər maɪnd/
UK /meɪk ʌp jʊər maɪnd/

1.
下定决心, 做出决定
to decide which of two or more choices you want
:
•
I can't make up my mind whether to go to the party or stay home.
我无法决定是去参加派对还是待在家里。
•
It's time to make up your mind about which college you want to attend.
是时候决定你想上哪所大学了。