The security forces had to intervene to prevent the situation worsening...是什么意思？

The security forces had to intervene to prevent the situation worsening...

安全部队不得不介入，以防止局势进一步恶化。

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。

security

n. 安全，保证，担保，保护，防护，有价证券；adj. 安全的，保安的，保密的；

例句
You've illegally accessed and misused confidential security files.
你已经非法访问并盗用了机密的安全文件。

forces

n. 力( force的名词复数 )，武力，（社会）势力，气力；v. 强制( force的第三人称单数 )，强作，施强力于，促成早熟；

例句
Reports from Chad suggest that rebel forces are advancing on the capital...
来自乍得的报告显示叛军正向首都推进。

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。

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。

intervene

v. 出面；介入，阻碍；干扰，插嘴，介于…之间；

例句
The Government is doing nothing to intervene in the crisis.
政府没有采取任何行动对这次危机进行干预。

prevent

vt. 预防，阻碍，阻止，[宗教]引领；vi. 阻挠，阻止；

例句
...an abortive attempt to prevent the current President from taking office.
企图阻止现任总统连任的失败尝试

situation

n. （人的）情况，局面，形势，处境，位置，[心理学]情境；

例句
The foreign minister admitted he was still anxious about the situation in the country...
外交部长承认对于该国的局势他仍然颇感忧虑。

worsening

v. （使）变得更坏，（使）恶化( worsen的现在分词 )；

例句
...a worsening in relations between the two previously friendly countries.
这两个曾经友好的国家之间关系的恶化