to suddenly start laughing loudly
внезапно начать громко смеяться (vne'zapno nachat' gromko smeyat'sya)
"Everyone burst out laughing at his joke."
"Все взорвались смехом от его шутки." (Vse vzorvalis' smekhom ot ego shutki.)
A difficult task or challenge.
a short period when a chance is available
To ignore a crisis or serious situation while doing somethin...
to introduce or create new concepts or methods
Very old or ancient
to change direction or strategy quickly