Después de la clase de educación física hay que ventilar el gimnasio porque huele fatal.After physical education class, we have to ventilate the gym because it smells awful.
Ventila las sábanas antes de ponerlas en la cama porque llevan mucho tiempo en el armario.Air the sheets before putting them on the bed. They've been inside the wardrobe for a long time.
Desde que lo dejé, Marcos está ventilando todas mis intimidades por rencor.Ever since I broke up with him, Marcos has been spreading my personal matters because of his hard feelings.
4.
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
El informático ventiló el problema en cinco minutos porque era muy sencillo.The computer technician sorted out the problem in five minutes because it was very simple.
ventilarse
A pronominal verb always uses a reflexive pronoun. (e.g. Te ves cansado.).