bà ba de xiōng dì jiě mèi mā ma de xiōng dì jiě mèi zhōng wén chēng hū cháng cháng bù tóng

爸爸的兄弟姐妹、妈妈的兄弟姐妹，中文称呼常常不同。

The siblings of one's father and the siblings of one's mother often have different Chinese titles.