How to say "please write it down" in Chinese

This is a polite request: 请 (qǐng) means 'please', 写 (xiě) means 'write', and 下来 (xiàlái) is a directional complement indicating 'down' (as in onto paper). So it literally means 'please write down'.

Use this when you want someone to write something for you, like an address or a word you don't recognize. It's polite and works in both casual and formal settings. A common mistake is omitting 下来, which would just mean 'please write' and might not convey the idea of writing it down for you.