放烟花用英语可以说作 "set off fireworks"。

“fireworks” 这个词来源于古英语“feuerwerke”，意思是“火焰操作”。

下面是一些英文例句：

The kids were so excited to set off fireworks on the Fourth of July.

We set off fireworks in the backyard to celebrate our wedding anniversary.

The city put on a huge firework display on New Year's Eve.