我把那个大理石镇纸放在收据上，防止它们被风吹走。

I put the marble ___paperweight on top of the receipts to keep them from blowing away.

这个小水晶摆件虽不能压纸，但作为纪念品很有意义。

The small crystal ___paperweight doesn't hold down papers, but it's meaningful as a souvenir.