a true and final test of success
настоящее и окончательное испытание успеха (nastoyashchee i okonchatel'noe ispytanie uspekha)
"The real market will be the acid test for this invention."
"Реальный рынок будет кислотным тестом для этого изобретения." (real'nyy rynok budet **kislotnym testom** dlya etogo izobreteniya)
to have romantic feelings for someone, often secretly
to be very eager or impatient for something to happen
to agree to stop fighting or arguing for a while
an emotionless or mechanical reaction
to worry a lot about something
a blessing or something very special
