发音相同，都发/ɪ/音。

Ours and theirs are sister schools.

我们学校和他们学校是姊妹学校。

Keep fighting for your rights, sisters!

姐妹们，为捍卫你们的权利而不懈斗争！

She was a sister to him.

对他来说，她像姐妹一样。

We are sister.

我们是姐妹。

She is elder sister to Susan.

她是苏珊的姊姊。