An elder brother, a younger sister, an elder sister.

一个哥哥，一个妹妹，一个姐姐。

youdao

He cooks dinner for all the family: mum, dad, younger brother Joe and elder sister Emma.

他为全家人做饭：妈妈、爸爸、弟弟乔和姐姐艾玛。

youdao

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。

youdao

It would seem that the Elder Brother and his sister were way too optimistic in their assessment of the protected status of the virtuous poet and the protected status of the virgin, the favored role of the poet. Virginity does nothing.

似乎《科玛斯》中哥哥和他的妹妹认为,贞洁的诗人，未失童真的诗人自然会受到保护,的想法太过乐观了，贞洁无能为力。

耶鲁公开课 - 弥尔顿课程节选

Now to the extent that this discussion is actually about the virginity of the Second Brother and the Elder Brother's sister, it seems, I think, to border on the ridiculous; but the debate, I think, we have to take seriously.

后来这兄弟俩谈论的对象,转到了自己的妹妹的贞洁的时候，就显得有点愚蠢了;,但我觉得这段辩论应当好好研究。

耶鲁公开课 - 弥尔顿课程节选

There is a strong genetic link - a baby is 30-40 times more likely to develop cleft lip and palate if their elder brother or sister was also born with the condition.

BBC: Folic acid 'cuts cleft palate risk'