發送短信 : The effect of clap-and-fling on two-winged flapping flight

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