half-sisterWiktionary 原文构词拆分half-前缀half or partial; not complete · Used before brother, sister, uncle, aunt, and so forth, to indicate that the person being identified is related only through one parent, grandparent, and so forth, rather than two.+sister词根/词干词源说明Equivalent to half- + sister.释义（英文）名词 NounAlternative spelling of half sister.