钢琴家的手指在琴键上飞舞，精湛的演奏技巧闪耀着令人眩目的光彩。

The pianist's fingers flew across the keys as his technique coruscated with dazzling brilliance.

coruscated 是动词 coruscate 的过去式，由拉丁词根 coruscare（闪烁）演变而来。这个词指"闪耀、闪烁"，常用来形容技艺或才华的精彩展现，带有光芒四射的意象。