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    大姐

    dàjiě

    1. big sister; elder sister; older sister (also polite term of address for a girl or woman slightly older than the speaker)

    我大姐今年二十五岁,在北京工作。 Wǒ dàjiě jīnnián èrshíwǔ suì, zài Běijīng gōngzuò.