Update README.md

README.md

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 license: gpl-3.0
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-大约9min的正常说话声音，可用于训练tts模型。
+大约9min的正常说话声音，划分为70个切片，可用于训练tts模型。
 
-Approximately 9 minutes of normal spoken voice, suitable for training TTS models.
+A 9-minute normal speaking voice divided into 70 slices for training a TTS model.