save up

US /seɪv ʌp/
UK /seɪv ʌp/
"save up" picture
1.

存錢, 儲蓄

to keep money so that you can use it later, especially to buy something that you want

:
I'm trying to save up for a new car.
我正在努力存錢買一輛新車。
She's been saving up all year for her vacation.
她一整年都在存錢為度假做準備。