在与雅思考官交流时，如果你没听清楚他们说的话，可以使用以下表达方式礼貌地请求他们重复或澄清：

1. "I'm sorry, could you please repeat that？"

2. "I didn't catch that. Could you say it again？"

3. "Could you speak a bit slower？ I want to make sure I understand."

4. "Would you mind repeating that？ I want to make sure I got it right."

5. "I'm sorry, I didn't understand. Could you clarify？"

请保持礼貌和耐心，因为考官通常会尽力帮助你理解他们的问题或指示。如果问题依然不清楚，你也可以请求考官以更清楚的方式表达或解释