They kept a record of earthquake disasters.是什么意思？

They kept a record of earthquake disasters.

他们记录地震所引发的灾害。

they

pron. 他/她/它们，人们，大家，政府，当局，她们；

例句
The storms had abated by the time they rounded Cape Horn.
他们绕过合恩角时，暴风雨已经减弱。

kept

adj. 受人资助控制的；v. （使）保持， （使）继续（ keep的过去式和过去分词 ），（食品）保持新鲜，保有，保存；

例句
They had given an absolute assurance that it would be kept secret.
他们信誓旦旦地保证将对此绝对保密。

record

n. 记录，记载，唱片，事实，经历，前科；adj. 创纪录的；

例句
...our abysmal record at producing a scientifically trained workforce...
我们在培育具有科学素养的专业人才方面惨不忍睹的记录

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。

earthquake

n. 地震，大变动，动乱；

例句
Government officials visited the earthquake zone on Thursday morning to co-ordinate the relief effort.
星期四上午，政府官员视察地震灾区，以协调救援工作。

disasters

n. 灾难( disaster的名词复数 )，彻底的失败，不幸，祸患；

例句
The reinsurance market has been bloodied by disasters in the U.S.
再保险市场因美国发生的灾难而遭受重创。