名词
中文翻译：双胎
同义词：
['twins', 'twins of the same sex']
例句：
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1.They have twins, which means they are having two babies at once.
他们有双胞胎，这意味着他们同时生下了两个宝宝。
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2.The twins were born at the same time, and they look very much alike.
这对双胞胎是在同一时间出生的，它们看起来非常相似。
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3. The twins are very close, and they often play together as a pair.
这对双胞胎非常亲密，他们经常一起玩耍作为一对。