How to pronounce the word "sister-in-law"? What do you mean?

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A brother's wife, two sisters-in-law.

Dream of Red Mansions. The fifty-third time: "Two or three sisters-in-law of Grandmother Jia's generation sat on their sides with leather plates. 」

Travel notes of Lao Can. 16: "I was killed for my sister-in-law's disagreement. 」

example sentence

Mother regards her in-laws as her biological parents and her eldest sister-in-law as her sisters.