a true and final test of success
una prueba verdadera y final de éxito (una verdadera y final prueba de exito)
"The real market will be the acid test for this invention."
"El mercado real será el test ácido para esta invención." (el mercado real sera **el test acido** para esta invencion)
a failure to keep information or promises secure
to keep something secret
to consider something carefully from all angles
time passes very quickly
a common phrase for a dog, symbolizing loyalty and friendshi...
under pressure to perform or complete something