go flat out造句 1. The car was going flat out at 120 mph. 2. My car only does about 60 mph, even when it's going flat out. 3. Going flat out, the BMW 325 will reach a speed of 140 miles per hour. 4. People asked if I was going to change my tactic and go flat out because I need to win. But I have been flat out for a long time. I have nothing else to think about. 5. "Greece is definitely one of my favourite events and I really want to go flat out next week and finish on top of the podium, " he said.