sibling-in-lawWiktionary 原文构词拆分sibling词根/词干+in-law词根/词干词源说明From sibling + -in-law.释义（英文）名词 NounA relative of one's generation, separated by one degree of marriage:(uncommon) Co-sibling-in-law: A relative of one's generation, separated by two degrees of marriage:词族派生词（3）half-sibling-in-lawhalf sibling-in-lawco-sibling-in-law