同父异母姐妹

例句：

1. 1. She is the only child of herparents, but she has two half-siblings who are not biologicallyrelated to her.
   她的父母只有一个孩子，但她有两个半兄弟姐妹，他们不是生物学上的亲属。
2. 2. The twins were born from adifferent mother and father, making them theonly siblings in their family.
   这对双胞胎来自不同的父母，所以他们是他们家唯一的兄弟姐妹。
3. 3. Despitebeing half-siblings, theyhave formed a close bond and often spendtime together.
   尽管他们是半兄弟姐妹，但他们建立了紧密的关系，并经常一起度过时光。