to become difficult to control
volverse difícil de controlar (volverse dificil de controlar)
"The party started to get out of hand when more people arrived."
"La fiesta comenzó a volverse difícil de controlar cuando llegaron más personas." (La fiesta comenzo a volverse dificil de controlar cuando llegaron mas personas.)
plans are uncertain or not decided yet
to stay more advanced or knowledgeable than others
to betray someone who trusts you
aggressive or very direct form of advertising
to make sure income and expenses are equal
a decision where people are divided in opinion