帮匪们曾经威胁说如果印度方面不释放他们的同伙，他们就要将这四名人质全部斩首。用英语怎么说？

帮匪们曾经威胁说如果印度方面不释放他们的同伙，他们就要将这四名人质全部斩首。

The kidnappers had threatened to behead all four unless their jailed comrades were released.

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。

kidnappers

n. 拐子，绑匪( kidnapper的名词复数 )；

例句
Mr Hillman was snatched by kidnappers last Thursday.
上周四希尔曼先生被绑匪劫走了。

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。

threatened

adj. 受到威胁的；v. 威胁(threaten的过去分词)；

例句
Union officials made no apologies for the threatened chaos.
工会干部们对于迫在眉睫的混乱局面不予道歉。

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。

behead

vt. 砍（某人的）头，砍头处决；

例句
It needed only a fraction of a second to behead him.
砍去他的脑袋只要短短的一瞬.

all

adj. 全部的，一切的，各种的，极度的，尽量的；pron. 全部，一切，每个人，每件东西，全部情况；adv. 全部地，完全地，每个，非常；n. 全体，[常作A-]整体，[常与my, your, his, her等连用]（某人）所有的一切；

例句
Many parents simply abdicate all responsibility for their children.
许多父母对孩子简直是完全撒手不管。

four

num. 四，四个，第四；n. 四个人（或事物）的一组，得四分的一击，四人赛艇；

例句
His car was held up and he was abducted by four gunmen...
他的车遭遇拦劫，随后他被4名持枪歹徒劫持。

unless

conj. 除非，如果不；prep. 除了，…除外；

例句
No-one can set up a waste disposal company unless they can show that they've got enough money and trained staff to do the job properly...
任何人若想成立废品处理公司,必须证明其拥有足够资金和受训员工以保证工作可以顺利开展。

their

pron. 他（她，它）们的，在提及性别不详的人时，用以代替 him 或 her；

例句
Their permissiveness toward their children reflects the wild abandon of their own lives.
他们对孩子的放任折射出他们自身生活的放浪形骸。

jailed

v. 监禁，拘留( jail的过去式和过去分词 )；

例句
He was jailed for aggravated assault.
他因犯严重伤害罪而被判入狱。

comrades

n. 亲密的伙伴( comrade的名词复数 )，战友，朋友，同志；

例句
Unlike so many of his comrades he survived the war.
和许多战友不同，他在战争中幸存下来。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

released

v. 释放( release的过去式和过去分词 )，放开，发布，发

例句
At 3.30 p.m. a bulletin was released announcing that the president was out of immediate danger.
下午3点30分发布了公告，称总统已经暂时脱离危险。