戴盆望天yīngwénjièshì:
  • n.  work blindly
  • n.  try to discover the mystery of the sky by covering the head with a tub
  • v.  (literally) to try to view the sky with a tray on the hear--to take an action contrary to one's objective

(fēizhùcèchéngyuánměiyèzànxiàn 4 lì)