There will be fines for people who drop litter.

乱扔垃圾的人将被罚款。

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。

Do not drop litter carelessly.

不要粗心大意地扔垃圾。

Don't drop litter carelessly.

不要随便丢垃圾。

You can't drop litter carelessly.

你不能乱扔垃圾。