灰姑娘的英文原文可以概括如下：
Cinderella's Background:
She is a beautiful girl who lives with her father, stepmother, and two stepsisters。
Her stepmother and stepsisters treat her very cruelly, forcing her to do all the housework。
She is named "Cinderella" because she often sleeps by the fireplace next to the cinders。
Cinderella's Life:
She spends her days cleaning and tidying the house, with her only friend being a small black cat。
One day, a messenger arrives with an invitation to a ball hosted by Prince Charming。
The Ball Invitation:
Cinderella's stepmother is excited about the invitation, but Cinderella is unsure if she is invited too。
She asks if she can attend, and the story continues with her preparation for the ball。
以上內容基於提供的搜尋結果，概括了灰姑娘的基本故事情節和角色關係。