Je was op zoek naar: gumption (Engels - Japans)

gumption
勇気

- gumption.
度胸よ

you got the gumption?
もう分るよな?

and, 12 years later, with hard work and gumption... end up the senior manager at that very same costco.
１２年の厳しい労働と 積極性で 同じ職場の上級マネージャーに 昇り詰める

these two here, and they're carrying a couple of grenades... and they got a boatload of gumption.
手榴弾を運んできたんだ 彼らの働きによって