DC police are putting out the words litterbugs are not welcome in the nation's capital.

华盛顿特区的警察将在首都内贴出乱扔垃圾者不受欢迎的标志。

It's not nice to be a litterbug, leaving your rubbish around.

做一个乱扔垃圾的人并不好，到处乱扔垃圾。