mā ma / bāng / wǒ / chāi kāi / fà juǎn / tóu fa / biàn chéng le / piào liang de / juǎn fà

妈妈帮我拆开发卷，头发变成了漂亮的卷发。

Mom helped me remove the hair rollers, and my hair became beautifully curled.