to be knowledgeable or skilled about something
быть осведомленным или опытным в чем-то (byt osvedomlennym ili opytnym v chem-to)
"You can tell she really knows her stuff about physics."
"Можно сказать, что она действительно разбирается в физике." (Mozhno skazat, chto ona deystvitel'no razbiraetsya v fizike.)
someone who works well with others
a person who secretly controls or influences the leader
survival of the strongest; lack of order or law
to become crazy or mentally unstable
To begin to succeed rapidly; to leave the ground.
to frighten someone very badly
