n.

1. 废弃物，零乱之物[U]
   There were piles of litter on the streets.

   街上有一堆一堆的废弃物。

2. 杂乱[S]
   Her room was in such a litter that she was ashamed to ask me in.

   她的房间十分杂乱，她不好意思请我进去。

3. （动物睡窝里垫的）干草等物；厩肥[U]
4. （猪、狗等生下的）一窝（仔畜）[C][G]
   A female rat may have five or six litters yearly, and an average of nine per litter.

   一只雌鼠每年可产幼仔五至六窝，平均每窝九只。

5. （森林里的）枯枝落叶层[U]
6. 轿，舆；担架[C]

vt.

1. 把……弄得乱七八糟[（+with）]
   Don't litter up the floor with scraps of paper.

   别往地上乱丢纸屑。

2. 乱丢（杂物）
3. 给（牲畜）垫褥草[（+down）]
4. （多产动物）产（仔）
5. 使充满[H][（+with）]
   The fire-place was littered with cigarette butts.

   壁炉里丢满了烟头。

vi.

1. 乱扔废弃物
   Please don't litter.

   请勿乱扔纸屑杂物。

2. 产仔

n.

1. rubbish left in public.
   ▸a collection of things lying about untidily.
2. a number of young born to an animal at one time.
3. (also cat litter) granular absorbent material lining a tray for a cat to urinate and defecate in indoors.
4. straw or other plant matter used as animal bedding.
5. (also leaf litter) decomposing leaves and other matter forming a layer on top of soil.
6. historical a vehicle containing a bed or seat enclosed by curtains and carried by men or animals.
   ▸a framework with a couch for transporting the sick.

v.

1. make untidy with litter.
   ▸leave (rubbish or objects) lying about untidily.
2. archaic provide (an animal) with litter as bedding.