發送短信 : Utility values associated with vitreous floaters

  ____       ___      _____    _    _     ____    
 |  _ \\    / _ \\   /  ___|| | || | ||  |  _ \\  
 | |_| ||  | / \ || | // __   | || | ||  | |_| || 
 | .  //   | \_/ || | \\_\ || | \\_/ ||  | .  //  
 |_|\_\\    \___//   \____//   \____//   |_|\_\\  
 `-` --`    `---`     `---`     `---`    `-` --`