A very bright light that is dazzling.
The brilliancy of the diamonds made them hard to look at.
钻石的璀璨使它们难以直视。
Being very smart or quick-thinking.
His brilliancy in math helped him solve the tough problems.
他在数学上的才华帮助他解决了难题。
Being very good or successful at something.
Her brilliancy in ballet was praised by everyone.
她在芭蕾舞上的才华受到了大家的赞扬。