妹妹的英文：
sister
sis

参考例句：

An offer of marriage(ie proposal)to the youngest sister
向最小的妹妹的求婚

How long has your younger sister been in love with Alexander?
你妹妹与亚历山大谈恋爱多久了?

He had promised that he would be with his sister through fair and foul.
他保证不管在什么情况下都要和他妹妹在一起。

It was your uncanny likeness to my sister that made me stare at you
你和我妹妹离奇的相似使我注视着你。

She was intriguing with her sister against her mother.
她和妹妹串通捣鬼和母亲作对。

It is sisterhood that make her give up her own getting in order to send her younger sisters to college.
是姐妹之情使她为了送妹妹们上大学而放弃了自己的利益。

His kid sister clerks in a store
他妹妹在商店当店员。

That was not nice of you to play a trick on your younger sister.
对你的妹妹恶作剧是不对的。

My sister likes to take pictures.
我妹妹喜欢照相。

My sister walked off in a huff.
我妹妹气呼呼地走了。

sister是什么意思：
n. 姐妹；修女；护士
v. 姐妹般对待
adj. 姐妹般的；同类型的

The elder sister is called Mary.
姐姐名叫玛丽。

It is unnatural for sisters to be at variance.
姐妹之间不和是不近人情的。

The girl in red is his younger sister.
那个穿红衣服的女孩是他妹妹。

Zeal without knowledge is the sister of folly.
没有知识的热心等于愚蠢。

His kid sister clerks in a store
他妹妹在商店当店员。

sis是什么意思：
n. 妹妹，姐姐

How have you been lately, sis?
姐姐，近来好吗？

Hey, sis, I put the tire in water as you said.
嘿，姐姐，我照你说的把轮胎放在水中了。

The SI system therefore takes the ampere as one of its fundamental units
因此，SI制取安培作为它的基本单位之一。

I - sied about and made him two good - sized sandwiches.
我忙了一阵子给他做了两大块三明治。

Si cumulate except the boxing hall do flange base outside or those who knew him best.
斯累积除了拳击大厅做外面或法兰基地最了解他的人。