is she your sister?肯定回答是Yes,she is.释义：她是你姐姐吗？是的，她是。sister释义：n.(称志同道合者)姐妹;姐;妹;护士长；adj.姐妹的;同类(型)的。
adj.
姐妹般的；同类型的a thing that belongs to the same type or group as sth else
She treated him in a cordial, sister way.
她以姐妹般的热情方式待他。
n.
1.姐妹 [C]a girl or woman who has the same mother and father as another person
She was intriguing with her sister against her mother.
她和妹妹串通捣鬼和母亲作对。
2.修女；护士 [C]Sister a female member of a religious group, especially a nun
When at last the lonely girl went to her cabin, Sister Agatha was already sleeping.
终于这位孤单的女孩子进了房舱，这时阿嘉沙修女已经安寝。
v.
姐妹般对待 [T]treat like sisters
Sister Act修女也疯狂 ; 修女也猖狂 ; 修女也猖獗 ;
Sister Carrie嘉莉妹妹 ; 嘉丽妹妹; 嘉利妹妹
sister chromatid[遗]姐妹染色单体 ; 姊妹染色单体 ; 染色分体
Little Sister小妹 ; 小妹妹 ;
Sister college姐妹学院
Sister Rose妹妹的玫瑰 ; 姐妹玫瑰 ; 露丝妹妹 ; 姊妹花
sister cities友好城市 ; 姊妹城市 ; 姐妹城市 ; 姊妹都市
elder sister姐姐 ; 年老大姐 ;
younger sister妹妹 ; 幼妹 ; 小妹妹