确凿不移 [
què zuò bù yí]
well established and irrefutable
as true as a die
(as) true as steel
beyond doubt
for a certainty
- 我们无论何时都必须对为国效劳的男女军人表达无限感激之情,这一点已确凿不移。
We must always express our profound gratitude for the service of our men and women in uniform. Period.