n.(在公共场所乱扔的)垃圾，废弃物，杂物,乱七八糟的东西,乱放的杂物,(供宠物，尤指猫，在室内便溺的)猫砂，便溺垫物
v.使乱七八糟,使凌乱,乱扔,使饱含，使遍布(一般指不好的东西)
litter的第三人称单数和复数

原形：litter第三人称单数：litters复数：litters过去式：littered过去分词：littered现在分词：littering

Papers littered my desk.
我的书桌上乱七八糟地堆满了文稿。
Tom's dog hasn't had a litter of puppies.
汤姆的狗还没有生过一窝小狗。
Litter is a major environmental problem in many cities.
垃圾是许多城市的主要环境问题。
He picked up the litter on the beach to keep it clean.
他在海滩上捡拾垃圾以保持清洁。
She organized a community litter pick to improve our neighborhood.
她组织了一次社区清洁活动来改善我们的社区。
The local government has launched a campaign against littering in parks.
当地政府发起了一场反对公园内乱丢垃圾的运动。
Don't litter, use a trash can or recycling bin.
不要乱扔垃圾，请使用垃圾桶或回收箱。
The dog happily chewed on a piece of litter he found on the street.
那只狗在街上找到一片垃圾，高兴地咀嚼起来。
Littering in public places is an act of disrespect for the environment.
在公共场所乱丢垃圾是对环境的不尊重。
Litter is not only unsightly but also harmful to wildlife.
垃圾不仅不美观，而且对野生动物有害。
Remember to dispose of your waste properly; it's everyone's responsibility.
请妥善处理你的垃圾，这是每个人的责任。
The children were taught the importance of picking up litter and keeping their schoolyard clean.
孩子们被教导捡起垃圾和保持校园清洁的重要性。