sibling

我的兄弟姐妹和我关系密切。

My ___sibling and I share a close bond.

有一个支持的兄弟姐妹可以使童年记忆更加珍贵。

Having a supportive ___sibling can make childhood memories more precious.

我也很幸运有一个兄弟姐妹，一个姐姐，她在我小时候照顾我。

I am also lucky to have a ___sibling, an older sister, who took great care of me when we were children.