你和你姐姐保持联系吗？

Are you keeping in touch with your sister?

youdao

如果你可以的话，能不能和你姐姐换个座位？

If you could, would you please trade places with your sister?

youdao

如果你可以的话，能不能和你姐姐换个座位？

If you could, would you please trade places with your sister?

youdao