The island’s inhabitants had no immunity to the diseases carried by the explorers and quickly succumbed.是什么意思？

The island’s inhabitants had no immunity to the diseases carried by the explorers and quickly succumbed.

岛上居民对探险者携带的病毒没有免疫力，很快就死去了。

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。

inhabitants

n. 居民，住户， （栖息在某地区的）动物( inhabitant的名词复数 )；

例句
The police have warned the city's inhabitants not to bathe in the polluted river.
警方已经告诫该市居民不要在这条被污染的河里游泳。

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。

no

adv. 不，否，一点也没有；adj. 没有的，不许的，一点儿也没有，决不是的；n. 不，否定，否认，反对票，否决票；abbr. 数字(number)，元素锘(nobelium)的符号；

例句
...a crime wave that shows no sign of abating.
丝毫没有减弱迹象的犯罪势头

immunity

n. 免除，豁免，免疫力；

例句
Conclusion Indwelling hepatoma after MTC treatment could activize the anti tumor immunity of the patients.
结论微波固化后留置可以刺激宿主的抗肿瘤免疫力.

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。

diseases

n. 疾病( disease的名词复数 )，弊端，恶疾，痼疾；

例句
The biology of these diseases is terribly complicated.
这些疾病的机理极其复杂。

carried

adj. 被携带的，被运载的；v. 支撑( carry的过去式和过去分词 )，携带，输送，运载；

例句
The police say they suspect the attack was carried out by animal rights activists.
警方说他们怀疑袭击是由动物权益保护的积极分子们发动的。

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

explorers

n. 探险家，勘探者( explorer的名词复数 )；

例句
Portuguese explorers had charted the west coast of Africa as far as Sierra Leone...
葡萄牙探险家已经绘制出了远至塞拉里昂的非洲西海岸地图。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

quickly

adv. 迅速地，立即，马上；

例句
Reaching this agreement so quickly was a great achievement...
如此快速达成这项协定是一大伟绩。

succumbed

v. 不再抵抗（诱惑、疾病、攻击等）( succumb的过去式和过去分词 )，屈从，被压垮，死；

例句
A few years later, Katya succumbed to cancer in London...
几年后，卡佳因患癌症在伦敦病逝。