【完结】【Vocabulary in use·全网首套教程】剑桥词汇在用初...

juvenile delinquency 青少年犯罪

a close relative 近亲

a distant relative 远亲

niece 侄女

nephew 侄子

engaged 订婚

sibling 兄弟姐妹

identical twins 长得一样的双胞胎

fraternal twins 一卵双生

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born from two eggs