电暖炉的火刚开始烧着他的裤腿。用英语怎么说？

电暖炉的火刚开始烧着他的裤腿。

The electric fire had begun to singe the bottoms of his trousers.

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

electric

adj. 电的，带电的，发电的，导电的，令人激动的，电动的；n. 电动车辆，带电体；

例句
A household radiator absorbs energy in the form of electric current and releases it in the form of heat.
家用取暖器吸收电流能量，再以热量的形式释放出来。

fire

n. 火，燃烧物，火灾，射击，发射，热情；vt.& vi. 开火，射击，燃烧，引爆炸药，充满热情；vt. <口>解雇，射（箭），激励，射出（子弹）；

例句
...weapons that could fire with accuracy at targets 3,000 yards away...
能准确无误地击中3,000码以外目标的武器

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

begun

n. [人名] 贝根，[地名] [印度] 贝贡；v. 开始（begin的过去分词）；

例句
The women who worked in these mills had begun to agitate for better conditions.
在这些工厂里做工的妇女们开始抗议要求改善工作条件。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

singe

vt.& vi. 浅表烧焦；vt. （毛发）燎，烧焦尖端[边儿]；n. 浅表[轻微]烧焦；

例句
The electric fire had begun to singe the bottoms of his trousers...
电暖炉的火刚开始烧着他的裤腿。

bottoms

n. 底部( bottom的名词复数 )，尽头，[比喻]根底，臀部；

例句
The electric fire had begun to singe the bottoms of his trousers...
电暖炉的火刚开始烧着他的裤腿。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

trousers

n. 裤子；

例句
It makes soldiers happy to know that somebody right at the top has been caught with his trousers down...
顶头上司出了大洋相，当兵的最高兴了。