pyrotechnics
n.
1729, from pyrotechnic (also see -ics). Figurative sense is from 1901.
〔李〕[pyr;-o-;techn;-icsn.] n.烟火制造术； 善变的口才 ←techn (GK techne)=art, skill 技艺
〔李〕n.烟火制造术 ←pyr（o）-[GK] =fire火；heat热
〔李〕[pyr;-o-;techn;-icsn.] n.烟火制造术； 善变的口才 ←techn (GK techne)=art, skill 技艺
〔李〕n.烟火制造术 ←pyr（o）-[GK] =fire火；heat热