By the time the project finished, the whole team was completely burned out.
Tips
usage
Heavy word — implies exhaustion that's both mental and physical, usually from long periods of stress. Don't use it for ordinary tiredness; for that, 累 (lèi) or 疲倦 (píjuàn) is enough.
memory
心 (mind) + 力 (body strength) + 交 (mutually) + 瘁 (worn out): your mind and body are wearing each other out at the same time. Perfect for the modern 'burnout' concept.
