DICT.TW Dictionary Taiwan

 flat out
 精疲力竭,疲憊不堪;鼓足幹勁,全力以赴;終成泡影,終於失敗

 flat out
      adv 1: in a blunt direct manner; "he spoke bluntly"; "he stated his
             opinion flat-out"; "he was criticized roundly" [syn: bluffly,
              bluntly, brusquely, roundly]
      2: at top speed; "he ran flat out to catch the bus"; "he was
         off down the road like blue murder" [syn: like blue
         murder]