1.
a half brother; half sister.
同父异母兄弟（或同母异父兄弟）；同父异母姐妹（或同母异父姐妹）。
2.
whole brothers and sisters.
同父同母的兄弟姐妹。
3.
Aunt Caroline's and Uncle Jim's children are half-brothers and half-sisters to the other children.
卡洛林姑姑和吉姆姑父共同的孩子和其他的孩子是同父异母或同母异父的兄弟姐妹。
4.
A cousin-german is a first cousin
同祖父母(或外祖父母)的兄弟(或姐妹)，是堂(或表)兄弟(或姐妹)
5.
I've never understood that. I thought they were half-brothers and half-sisters.
我还是一点都不明白。我以为他们是同父异母或同母异父的兄弟姐妹。
6.
My half-brother, the Earl of Moray, tried to stop the marriage.
我的同父异母兄弟，马里伯爵，试图想阻止这场婚姻。
7.
I learned that he was less indirect than his half brother the King.
我知道，这位国王的同父异母的兄弟说话办事不那么拐弯抹角。
8.
(of siblings) having the same parents.
（指兄弟姐妹）有共同的父母。
9.
"Brothers and sisters,Including all half, step or adoptive relationships - and yourself. Give mother's maiden name. If deceased, give date of death."
(同父异母异或父、继、养)兄弟姐妹;请填写母亲婚前姓名;如已死亡的,请注明其死亡日期。
10.
S: Do you still live with you half-brother?
你还和你同母异父弟弟住在一起？
11.
Ms Rose complains that she and her half-sibling Adam have suffered an identity crisis from knowing nothing about their biological father.
罗斯说，她和她同母异父的兄弟亚当因为对生身父亲一无所知而陷入身份危机。
12.
foster Brother [sister]
在同一家庭中养育(但不是同父母)的兄弟
13.
your foster brother is a male who is not a son of your parents but who is raised by your parents.
不是你父母的孩子但是是被你父母抚养的同奶兄弟。
14.
Second in order: brothers and sisters, paternal grandparents, maternal grandparents.
第二顺序：兄弟姐妹、祖父母、外祖父母。
15.
But because he is a child, the Earl of Moray, my half- brother, can rule the country for him.
但因为他还是个小孩，可以由马里伯爵，我的同父异母的兄弟为他治理这个国家。
16.
Having only one parent in common.
同父异母（或同母异父）的
17.
Full brothers and full sisters share the same mother and father.
人的全同胞兄弟和全同胞姐妹具有共同的父亲和母亲。
18.
Her stepfather put up $1,000, her half brother, $500.
她的继父集了1000美元，她的同父异母的弟弟集了500美元。