pyrotechnics
noun [ plural ] uk/ˌpaɪ.rəˈtek.nɪks/ us/ˌpaɪ.roʊˈtek.nɪks/
焰火，烟花表演
a public show of fireworks
（尤指音乐家或演讲者）出神入化的表演，出色的表现
a show of great skill, especially by a musician or someone giving a speech
His verbal pyrotechnics could hold an audience spellbound. 他出色的口才能迷倒听众。