How to say "please say it again" in Chinese

This is a polite request: 请 (qǐng) means 'please', 再 (zài) means 'again', 说 (shuō) means 'say', and 一遍 (yí biàn) is a measure word for 'one time'. So it literally means 'please say one more time'.

Use this when you didn't hear or understand something and want the person to repeat it. It's polite and appropriate in most situations. A common mistake is using it too often without showing you're trying to understand—it's better to also ask for clarification on specific parts.