Definition
Occurring or happening directly in someone's sight; while someone is watching.
眼皮底下
The magician made the dove disappear before our very eyes.
魔术师在我们眼前让鸽子消失了。
It was heartbreaking to watch him suffer and his power slip away before our very eyes.
眼睁睁看着他受苦，力量逐渐消逝，真是令人心碎。
The old building was demolished before our very eyes.
老建筑在我们眼前被拆除了。