波纹

shuǐ shàng bō wén

水上波纹

ripples on the water

juǎn fà shang de bō wén

卷发上的波纹

waves in one's hair

xì xì de bō wén zài chí táng li kuò sàn kāi lái

细细的波纹在池塘里扩散开来。

Small waves rippled across the pond.

bō wén yìng zhǐ bǎn

波纹硬纸板

corrugated cardboard