Never litter when you're out and about — always try to find a proper trash can or recycling bin for your trash!

外出时不要乱扔垃圾——为你的垃圾找到垃圾桶！

youdao

Never litter or spit here and there. As long as we can do like this, we're sure to own a clean and beautiful school.

只要大家都这样去做，我们一定会拥有一个洁净而美丽的校园。

youdao

It was drilled into us at an early age never to drop litter.

我们从小就被叮嘱绝不能乱扔垃圾。

《牛津词典》

We never had another, but as soon as I left him, he got two litter sisters, and the children tell me he now has three.

BBC: NEWS | UK | Scotland | 'His anger killed my dog'

"I never expected him to live this long, he had been thrown out of the litter and was only expected to survive for a couple of weeks, " she said.

BBC: Bedford cat set to be recognised as the "oldest in the UK"