to burst into laughter; to laugh uncontrollably
estallar en risa; reírse incontrolablemente (para estayar en risa; reirse incontrolablemente)
"We all cracked up at his silly joke."
"Todos nos reímos a carcajadas de su chiste tonto." (Nosotros todos **nos reimos a carcajadas** de su chiste tonto.)
to be full of excitement, happiness, or energy
to spread quickly on the internet
to become more willing to accept or consider new ideas, cult...
to assist someone in standing after a fall
to treat someone with care and compassion
to submit something like an assignment or report