放火的英文：
backfire
fire-raising
incendiarism
set fire

参考例句：

He was crazy and set the house on fire.
"他疯了,放火烧了房子。"

incendiary and suspicious
放火和有放火嫌疑的

An uncontrollable impulse to start fires.
放火狂一种想要放火的不能控制的冲动

Whoever endangers public security by setting fires, breaching dikes, causing explosions, administering poison
放火、决水、爆炸、投毒

The demonstrators set fire to the mayor's house.
示威群众放火烧了市长的房子。

They lit a torch and set fire to the chapel's thatch.
他们点着一支火把，放火烧了小教堂的茅草屋顶。

After setting fire to his room in order to destroy the evidence of his research, he had begun his strange adventures.
在放火烧掉自己的房间以销毁研究证据以后，他就开始了他的奇特的冒险。

backfire是什么意思：
v. 适得其反，事与愿违；放出逆火，发生回火
n. 逆火，回火

The car backfired.
车回火了。

The engine backfired noisily.
那发动机发生逆火引起爆鸣。

To explode in the manner of or make the sound of a backfire.
用逆火的方式爆裂或发出逆火的声音。

raising是什么意思：
v. [raise] 的现在分词形式；提高；养育

Bear in mind that the chief ray is now principal ray.
记住，此时主光线就是主点光线。

externo-lateral ray
外侧辐肋

concrete for radioactive ray shielding
放射线屏蔽用混凝土

incendiarism是什么意思：
n. 放火,煽动