sibling
n
(fml 文) any one of two or more people with the same parents; brother or sister 兄弟姊妹
I have two brothers and a sister
three siblings in all. 我有两个哥哥和一个妹妹: 共有三个兄妹.
[attrib 作定语]
sibling rivalry 同胞兄弟姊妹间的竞争.
You were very kind. You brought out all your jewellery and you told me I could take anything I wanted. There were so many beautiful things that it was hard to choose. And then I saw a lovely diamond necklace with a big blue stone in the centre.