File:國語發音學撮口呼.jpg
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![File:國語發音學撮口呼.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/5/58/%E5%9C%8B%E8%AA%9E%E7%99%BC%E9%9F%B3%E5%AD%B8%E6%92%AE%E5%8F%A3%E5%91%BC.jpg/800px-%E5%9C%8B%E8%AA%9E%E7%99%BC%E9%9F%B3%E5%AD%B8%E6%92%AE%E5%8F%A3%E5%91%BC.jpg?20181222082446)
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Original file (3,696 × 2,481 pixels, file size: 527 KB, MIME type: image/jpeg)