Text this: The Nasal Endings and Retroflexed Initials in Peking Mandarin: Instability and the Trend of Changes

  _  _     ______   ______    _    _     _  __  
 | \| ||  /_   _// |      \\ | || | ||  | |/ // 
 |  ' ||   -| ||-  |  --  // | || | ||  | ' //  
 | .  ||   _| ||_  |  --  \\ | \\_/ ||  | . \\  
 |_|\_||  /_____// |______//  \____//   |_|\_\\ 
 `-` -`   `-----`  `------`    `---`    `-` --`