to set off firecrackers;
to shoot off firecrackers
fire the firecrackers
放鞭炮的英文还有：
Spring wear new clothes, eating dumplings, setting off firecrackers, paste couplets. 春节穿新衣, 吃饺子, 放鞭炮, 贴对联.
Many boys explode firecrackers on the Lantern Festival every year. 许多男孩子每年在灯节放鞭炮.
The municipal government has lifted the ban on firecrackers. 市政府取消了放鞭炮的禁令.
And we set off firecrackers could frighten ghosts away. 我们放鞭炮可以驱除鬼怪.
They had to let off firecrackers by way of apology.
Children like to shoot off firecrackers in the Spring Festival.孩子们喜欢在春节时放鞭炮.
