the moment of truth
US /ðə ˈmoʊmənt əv truθ/
UK /ðə ˈmoʊmənt əv truθ/

1.
關鍵時刻, 真相大白之時
a time when a person or thing is tested, or when a decision has to be made
:
•
After months of preparation, the moment of truth arrived for the young athlete.
經過數月的準備,年輕運動員的關鍵時刻到來了。
•
The presentation tomorrow will be the moment of truth for our new product.
明天的演示將是我們新產品的關鍵時刻。