to make something more interesting or lively
hacer algo más interesante o animado (hacer algo mas interesante o animado)
"The teacher’s stories added color to the history lesson."
"Las historias del maestro agregaron color a la lección de historia." (las historias del maestro agregaron color a la leccion de historia)
to make someone feel uncomfortable or afraid
to not completely believe something
fixed and not likely to change
to be the first to do something innovative
a decision made very quickly without much thought
to find a problem or defect in a system