She led a normal, happy life with her sister and brother.

她和弟弟妹妹过着平常和幸福的生活。

《柯林斯英汉双解大词典》

Do you look forward to having a brother or sister?

你期待拥有一个兄弟还是姐妹？

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The most important thing is that you should try to be a good elder brother or sister, your parents also wish you to be friendly to your brother or sister.

最重要的是，你应该努力成为一个好哥哥或姐姐，你的父母也希望你对你的兄弟或姐妹友好。

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with the Pain and the Great One." It tells about the adventures of a brother and sister, Jake and Abigail.

VOA: special.2009.10.12

Because her brothers have naturally done what any brother would do accompanying a sister in a dangerous forest at night.

因为她的弟弟,做了任何一个弟弟深夜跟随着姐姐,在一个危险森林会做的事。

耶鲁公开课 - 弥尔顿课程节选

Your young brother or sister, or my little children, can draw pictures of family members that barely look like family members.

你的弟弟妹妹或者我的小宝贝们,可以画一些看起来,仅仅有点像家庭成员的画

耶鲁公开课 - 死亡课程节选

"Card companies are reluctant to lend to riskier borrowers just as anyone else might be reluctant to lend even to a brother or a sister if they don't think that that brother or sister can repay that loan, " she says.

NPR: Some Consumers See Credit Cards Canceled

Keynes had both a brother and sister and the brother certainly went on to have children (four) so in this sense Keynes, while childless himself, was indeed interested in the long term.

FORBES: Niall Ferguson's Keynes Was Childless, Gay, So Don't Worry About The Long Term Rumpus

During New Year's Eve, everybody is sitting in pairs, your brother with your sister-in-law, your sister with your brother-in-law etc.

BBC: Q&A: Chinese dating consultant Zhou Xiaopeng