برن اوت معانی مختلفی داره:
1FIRE [I,T burn sth out] if a fire burns out or burns itself out, it stops burning because there is no wood or FUEL left
2 FEEL TIRED [i] to feel very tired and not interested in things anymore, because you are working too hard:
• A lot of teachers are burning out and quitting. --see also BURNED OUT
3 be burned out
a) if something is burned out, the inside of it is destroyed by fire:
• Because of the war, entire cities were burned out.
b) if someone is burned out, they are very tired and no longer interested in things because they are working too hard
4 ENGINE [I,T burn sth<-> out] if an engine or electric wire burns out or is burned out, it stops working because it has been damaged by getting too hot
5 AIRCRAFT [i] if a ROCKET or JET burns out, it stops operating because all its FUEL has been used --see also BURNOUT
در مورد اول برن اوت یعنی سوختن چیزی تا انتها تا جایی که ماده ای برای سوختن باقی نمی مونه.
در مورد دوم یعنی در اثر خستگی زیاد از پا دراومدن
مورد سوم یعنی از درون به وسیله اتش خراب شدن
در مورد چهارم که فکر میکنم مد نظر ماست اگر موتور برن اوت شه یعنی موتور در اثر سرعت بسیار بالا و کار زیاد خیلی داغ شه و بسوزه
مورد پنجم هم یعنی از کار افتادن موشک یا جت به خاطر مصرف شدن همه سوخت.