waste of energy

• Выражение, описывающее действие, усилие или занятие, которое потребляет ресурсы или время без получения какого-либо полезного результата или выгоды.

An expression describing an action, effort, or activity that consumes resources or time without producing any useful result or benefit.

1. Unproductive effortB1informal

   An activity or action that consumes physical or mental effort without achieving any useful result.

   Пустая трата сил

   • Arguing with him is a waste of energy; he never listens.
   • Trying to fix that old machine is a complete waste of energy.
   • Worrying about things you can't change is just a waste of energy.

2. Inefficient use of resourcesB2formal

   Using more power, fuel, or resources than necessary to accomplish a task.

   Пустая трата энергии

   • Leaving the lights on all day is a waste of energy.
   • Driving a large SUV for short trips is a waste of energy.
   • The old heating system is a waste of energy and should be replaced.