Chinese phrase
请勿乱扔垃圾 qǐng wù luàn rēng lā jī
Meaning
Please do not litter
When to use it
A polite request not to litter. It is common on signs and public notices and sounds formal and impersonal.
Example dialogue
你看，牌子上写着：请勿乱扔垃圾。 nǐ kàn pái zi shàng xiě zhe qǐng wù luàn rēng lā jī
Look, the sign says, "Please do not litter."
知道了，我们把垃圾扔进垃圾桶吧。 zhī dào le wǒ men bǎ lā jī rēng jìn lā jī tǒng ba
Okay, let's put the trash in the trash can.