plump up

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

拍松, 使丰满

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

:
She plumped up the cushions on the sofa.
她把沙发上的靠垫拍松了
The dried fruit will plump up when soaked in water.
干果泡水后会膨胀