a big and sudden improvement
una gran y repentina mejora (una gran y repentina mejora)
"This discovery is a quantum leap in medical research."
"Este descubrimiento es un salto cuántico en la investigación médica." (Este descubrimiento es **un salto cuántico** en la investigación médica.)
To do something to an excessive degree.
to happen as expected
to make quick decisions or ideas under pressure
directly from the original or reliable source
without proper planning, failure is inevitable
trusting without questioning