half-sister
柯林斯词典
1. N-COUNT Someone's half sister is a girl or woman who has either the same mother or the same father as they have. 同母异父姐妹; 同父异母姐妹
返回 half-sister
half sister (half sisters)
剑桥词典
- a sister who is the daughter of only one of your parents
同父异母（或同母异父）的姐妹 返回 half-sister