卷成

tā bǎ tóu fa juǎn chéng yuán juǎn

她把头发卷成圆卷。

She caught up her hair into a bun.

shuāng jīn shǔ piàn tōng cháng dōu juǎn chéng luó guǎn xíng

双金属片通常都卷成螺管形。

The bimetal strip is usually bent into a coil.