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

一个哥哥，一个妹妹，一个姐姐。

youdao

I have one older sister, one younger sister and one younger brother.

我有一个姐姐、一个妹妹、一个弟弟。

youdao

My elder sister is the center of my life. I never find the absence of love, friendship or guardian till I am with my sister.

我的姐姐是我生活的中心。和姐姐在一起为止，我从来没有缺少过爱情、友情和保护。

youdao

The story is told by Sara Louise Bradshaw, a 13-year-old girl who lives with her parents and her twin sister Caroline.

VOA: special.2009.02.14

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

I haven't seen it, but one of my sister's favourite films. So yeah, I think, all these cultures,

我没有看过，但是它是我姐姐最喜欢的电影之一。所以，我认为，所有的这些文化，

国际城市，伦敦 - SpeakingMax英语口语达人

His older sister died of lymphoma, and his other sister died in a car crash.

FORBES: Reviving Novartis

"She's my bigger sister, she's my older sister, she's a role model for me, " Serena said.

CNN: Venus Williams falls asleep on the job

All she's wanted to do is ride her bike like her sister, run like her sister.

BBC: Pioneering surgery repairs girl's spine with leg bone