Definition (边缘)
When the edges of a flat object like paper begin to bend or roll upward.
卷曲;卷起来
The paper has been left in the sunlight too long, and the edges are starting to curl up.
这张纸在阳光下放太久了,边缘开始卷曲起来。
I noticed the newspaper got soggy in the rain, and some parts started to curl up.
我注意到报纸在雨中湿透了,有些部分开始卷曲起来。
The new photo has curled up at the edges due to humidity, making it look terrible.
新照片因为潮湿而边缘卷曲,看起来糟透了。