1.
Turn it down, Sis,@ he said.
“小声点，妹妹,”他说。
2.
his sister, or rather, stepsister
他的妹妹，或更确切地说，他的异父妹妹
3.
a gift to his younger sister
给她妹妹的一件礼品
4.
My shoes are small in comparison with my sister's.
我的鞋子比我妹妹的要
5.
My brother is twice as tall as your sister.
我弟弟比你妹妹高一倍。
6.
She turned out to be a friend of my sister/It turned out that she was a friend of my sister.
她原来是我妹妹的朋友.
7.
My sister wants to get married in October.
的妹妹想在十月份结婚。
8.
"You have a younger sister, don't you?"
你有个妹妹，不是吗？
9.
She' s never really got on with her sister / She and her sister have never really got on.
她和妹妹一向合不来.
10.
My younger sister dare not go out alone.
我妹妹不敢单独出去。
11.
Please give my love to your sister.
请代我向你妹妹问好。
12.
The news concerns your sister.
这消息和你的妹妹有关。
13.
My sister is in hospital with meningitis.
我妹妹得脑膜炎住院了。
14.
Have you heard from your sister ?
你收到你妹妹的信了吗？
15.
He threw the ball to his sister.
他把球投给了他的妹妹。
16.
My sister has a talent for music.
我妹妹有音乐才能。
17.
There's never been much love lost between her and her sister.
她和妹妹一向互相嫌恶.
18.
Yes, this is the pair of scissors of his sister's.
是的，这是他妹妹的剪刀。