Before your very eyes
用:表示惊讶和不愉快。
意:就在(你…)眼前…;眼睁睁地
Her father was murdered before her very eyes.
她眼睁睁地看着她父亲被谋杀

He claimed he had given up smoking,but later he lit a cigarette before my very eyes!
他声称已戒烟了,可没一会儿就在我眼前点燃一根烟!