to quit or withdraw from a competition or activity
dejar o retirarse de una competencia o actividad (dejar o retirarse de una competencia o actividad)
"The cyclist dropped out of the race due to an injury."
"El ciclista dejó la carrera debido a una lesión." (El ciclista **dejó la carrera** debido a una lesión.)
to depend on consistent conditions or predictable systems
to attend or show up to support an event or cause
to make many small mistakes because of nervousness
to work jointly to achieve something
to become successful quickly
to modify plans or behavior to fit changing circumstances