Don't litter the place with wastepaper.

不要乱扔废纸。

He threw it into the wastepaper-basket.

他把字条扔进了废纸篓。

There are two wastepaper baskets in the room.

房间里有两个废纸篓。

Put the scraps of paper in the wastepaper basket.

把纸屑丢进废纸篓。

Otherwise, just throw them into the wastepaper basket.

不然，就把它们丢到废纸筐里去好了。