At Green Acres last year, Ms. Murphy said, two kindergartners were playing outside when a boy, the son of a single mother, told a classmate that he had an older sister.
莫菲女士说，去年在绿色田野，两个幼儿园的孩子在室外玩耍，一个单亲母亲的儿子对一个同班的孩子说他有一个姐姐。
As for Sister Kathleen and your parents? Not a single word to them.
不要对凯瑟琳嬷嬷和你的父母泄漏一个字。
That's the only single word that can define being the eldest sister in the family.
那是唯一一个能定义在一个家庭中姐姐的字眼。
You see, little sister, Dad, as a single parent, is just trying to make sure that you have the proper guidance.
你应该明白，小妹妹，老爸作为一个单身父亲，就是要让你得到正确的引导。
His sister remained single after many years.
许多年过去了，他姐姐还是单身一人。
Purpose and methods: Single cell gel electrophoresis (SCGE), sister chromatid exchanges (SCE), chromosome aberrations are three methods to determine DNA damage and repair.
目的与方法：单细胞凝胶电泳技术(SCGE)、姐妹染色单体交换法(SCE)和染色体畸变分析法均能被用来检测dna的损伤或修复。
Since he was single and had no brother or sister, he lived by himself.
他没结婚，也没有兄弟姐妹，一个人单独居住。
Since he was single and had no brother or sister, he lived by himself.
他没结婚，也没有兄弟姐妹，一个人单独居住。
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