ryska-engelska översättning av тщетный

frustrateIt frustrates me to do all this work and then lose it allMy clumsy fingers frustrate my typing effortsThis test frustrates me because if I fail, itll destroy my grade
futile

unavailing
vain
us
vain toil; a vain attempt
void
us
null and voidNobody has crossed the void since one man died trying three hundred years ago; its high time we had another go.He voided the check and returned it