应该回收的纸张和塑料有时最终会被扔进垃圾堆。

Paper and plastic that should be recycled sometimes ends up in the ___trash.

我打开了礼物，把信封扔进了垃圾桶。

I opened the gift and put the envelope in the ___trash.

角落里有一堆垃圾。

There is a pile of ___trash in the corner.