我们应该教育孩子不要乱丢垃圾。

We should educate children not to litter.

不要乱丢垃圾！

Don't be a litter bug!

由于我从小就被教育要爱清洁，被督促不要乱丢垃圾，于是我把樱桃核直接从嘴里吐到了口袋中。

Having been taught to be tidy since I was a child and urged never to drop litter around, I popped the cherrystones from my mouth straight into my pocket.