compound surname ; two-syllable surname
百姓红双禧 people's red double jubilee
姓名笔双头粗 name pen double-ended thick
姓名笔双头细 double ended fine name pen
但孩子们很快就能拥有结合父母双姓的姓氏了。
But babies could soon have a surname combining the parents' family names.
youdao
《婚姻法》规定，子女可以随父姓，也可随母姓，但没有提到可以用父母双姓。
The Marriage Law stipulates that a newborn can have the surname of either the father or the mother, but does not mention a combined surname.
以双为姓氏，在中国并不多见，人数较少。双姓在少数民族中也有。另有两个字的复姓也叫双姓，如欧阳、太史、端木等，还有一种双姓的出现，主要原因是一胎化政策，将父母双方的姓组合在一起，创造一个新姓。
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