V-ERG
铺开；展开
If you unroll something such as a sheet of paper or cloth, or if it unrolls, it opens up and becomes flat when it was previously rolled in a cylindrical shape.
例句
I unrolled my sleeping bag as usual...
我像往常一样铺开我的睡袋。
Guests bring movies on tape, and show them on the screen that unrolls from the ceiling.
客人带来了录影带，并在从天花板上放下来的幕布上放映。