to be free from worry or fear
быть свободным от тревог или страха (byt svobodnym ot trevog ili strakha)
"You can rest easy knowing everything is under control."
"Вы можете быть спокойны, зная, что всё под контролем." (Vy mozhete byt spokoiny znaya chto vsyo pod kontrolem)
to do something innovative or pioneering
someone who appears harmless but is actually dangerous
to cause extreme fear or horror
unfortunate or unlucky situation
to remain persistent and determined in difficult circumstanc...
to absorb or understand information quickly
