Zhè / běn / xiǎoshuō / jiěshì / shuō / zhàngfu / de / jiějie / zài / dāngdì / kěyǐ / chēngwéi / dà / niáng / zǐ

这本小说解释说，丈夫的姐姐在当地可以称为大娘姊。

This novel explains that a husband's elder sister can be called dàniángzǐ in that area.