Sora提示词：场景描述（A sports training hall. Mia finishes a difficult r

场景描述（A sports training hall. Mia finishes a difficult routine while sweating. The coach reviews a tablet showing her performance. Warm afternoon light, mirrors on the wall, gym equipment around. Coach smiles proudly. Subtitles appear clearly in sync.），可以有点轻背景音乐，没有环境噪音，不要有任何字幕。对话内容： Coach: After watching your performance today, I can say one thing.
Mia: What’s that?
Coach: There is no doubt about it， you’re improving fast.
Mia: Really? That means a lot coming from you.
Coach: Keep practicing like this, and you’ll be ready for the championship.