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

1.
下定決心, 做出決定
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.
我無法決定是去參加派對還是待在家裡。
•
It's time to make up your mind about which college you want to attend.
是時候決定你想上哪所大學了。