to become an adult; to mature
crecer; hacerse adulto (crecer; hacerse adulto)
"Children grow up so fast these days."
"Los niños crecen tan rápido hoy en día." (Los niños crecen tan rápido hoy en día)
to manage tension or anxiety using breathing techniques
to complete final details of an arrangement
to seem or appear to be sincere and truthful
to talk with great enthusiasm and praise
to change completely into something new
to discuss something carefully to understand or solve it