plump up

US /plʌmp ʌp/
UK /plʌmp ʌp/
"plump up" picture
1.

拍鬆, 使豐滿

to make something fuller or rounder, or to become fuller or rounder

:
She plumped up the cushions on the sofa.
她把沙發上的靠墊拍鬆了
The dried fruit will plump up when soaked in water.
乾果泡水後會膨脹