a person who is only your friend when things are good
человек, который только твой друг, когда всё хорошо (chelovek, kotoryy tol'ko tvoy drug, kogda vsyo khorosho)
"A fair-weather friend will leave you when things get tough."
"Фэр-ведер френд уйдёт, когда дела станут трудными." (**Fyer-veder frend** uydyot, kogda dela stanut trudnymi.)
to become aware or informed about something
someone or something that brings great happiness
to be competent or deserving respect in one’s field
A strong and reliable base or starting point.
A very complex or unsolvable problem.
to start something from the very beginning
