to burst into laughter; to laugh uncontrollably
взорваться смехом; смеяться неконтролируемо (vzorvatsya smekhom; smejat'sya nekontroliruemo)
"We all cracked up at his silly joke."
"Мы все рассмеялись над его глупой шуткой." (My vse **rassmeyalis'** nad ego glupoj shutkoj.)
to oppose or resist something harmful or unjust
to increase the volume or rate of exports
to organize or arrange actions in cooperation with others
to make people more aware of an issue or cause
to express thanks or appreciation for something
to leave school or university before finishing a course