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"Muy bien" is an interjection which is often translated as "very good", and "mejorar" is a transitive verb which is often translated as "to improve". Learn more about the difference between "muy bien" and "mejorar" below.
muy bien(
mwee
 
byehn
)
An interjection is a short utterance that expresses emotion, hesitation, or protest (e.g., Wow!).
interjection
a. very good
¡Muy bien! Lo hiciste genial!Very good! You did great!
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. very well
Trabajamos muy bien juntos.We work very well together.
a. alright then
Ya empieza a oscurecer, así que me voy a casa. - Muy bien. Nos vemos mañana.It's getting dark already, so I'm off home. - Alright then. I'll see you tomorrow.
b. very well
A word or phrase that is seldom used in contemporary language and is recognized as being from another decade, (e.g., cat, groovy).
(old-fashioned)
No nos queda tiempo hoy. - Muy bien; lo dejamos para mañana.We don't have enough time left today. - Very well; we'll leave it for tomorrow.
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mejorar(
meh
-
hoh
-
rahr
)
A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
transitive verb
a. to improve
Hacer manualidades puede mejorar tu humor.Doing arts and crafts can improve your mood.
b. to increase (an offer)
Si quieren comprar la casa, van a tener que mejorar su oferta.If they want to buy the house, they'll have to increase their offer.
a. to break
El equipo terminó la temporada mejorando el récord histórico de goles.The team ended their season breaking the all-time goal-scoring record.
b. to beat
El corredor nigeriano espera mejorar su récord en el maratón este año.The Nigerian runner is hoping to beat his own record in this year's marathon.
An intransitive verb is one that does not require a direct object (e.g., The man sneezed.).
intransitive verb
a. to get better
Estoy mejorando con el tratamiento.I'm getting better with the treatment.
a. to improve
Tu inglés ha mejorado mucho desde que viajaste a Estados Unidos.Your English has improved a lot since you traveled to the States.
a. to improve
Si el tiempo no mejora, no podremos salir.If the weather doesn't improve, we won't be able to go out.
b. to clear up
El tiempo ha mejorado bastante. ¿Quieres salir a dar una caminata?The weather has really cleared up. Do you want to go out for a walk?
mejorarse
A pronominal verb always uses a reflexive pronoun. (e.g., Te ves cansado.).
pronominal verb
a. to get well
Todos esperamos que te mejores pronto.We all hope that you get well soon.
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