The quintuplets are three brothers and two sisters.
这些五胞胎是三男两女。
辞典例句
But they suddenly became the parents of quintuplets, four girls and a boy.
但是他们出人意料生了个五胞胎, 4女1男.
新概念英语第三册
Every one of the quintuplets are their darlings, but the mother especially dotes on the youngest.
五胞胎个个是他们的心肝宝贝, 不过作母亲的格外疼那个了小的.
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