He's always littering up the room with his old magazines.

他老是乱扔旧杂志，弄得房间凌乱不堪。

He 's always littering up the room with his old magazine.

他老是乱扔杂志，把房间弄得凌乱不堪。

My punishment for littering was several hours of picking up trash.

我因乱扔杂物而受到的处罚是捡几个小时垃圾。

My punishment for littering was several hours of picking up trash.

我因乱扔杂物而受到的处罚是捡几小时垃圾。

Last week I picked up 128 cigarette butts. People are always littering in New York.

上个星期，我捡了128个烟头。纽约的市民永远都在乱丢垃圾。