curl up

US /kɜːrl ˈʌp/
UK /kɜːrl ˈʌp/
"curl up" picture
1.

蜷缩, 卷曲

to sit or lie in a position with your arms and legs close to your body

:
She likes to curl up on the sofa with a good book.
她喜欢蜷缩在沙发上看一本好书。
The cat curled up in a ball on the rug.
猫在地毯上蜷成一团。
2.

卷曲, 卷边

if something such as paper or a leaf curls up, its edges bend inwards

:
The old photographs had started to curl up at the edges.
旧照片的边缘开始卷曲
The heat made the leaves curl up and turn brown.
高温使叶子卷曲变黄。