我的铅笔在背包里。

My pencil is in the backpack.

youdao

我的钢笔在背包里。

My pen is in the backpack.

youdao

洞里有我要的东西，在我的皮制背包里。

I need my stuff from the caves. My leather backpack.

youdao

洞里有我要的东西，在我的皮制背包里。

I need my stuff from the caves. My leather backpack.

youdao