He had a dreadful attack of vertigo.是什么意思？

He had a dreadful attack of vertigo.

他忽然头晕得厉害。

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

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。

dreadful

adj. 可怕的，令人畏惧的，讨厌的，糟透了的，丑陋的，糟糕的；n. <英>惊险小说[杂志]；

例句
They told us the dreadful news...
他们告诉了我们那糟糕透顶的消息。

attack

vt.& vi. 攻击，进攻，抨击；n. 攻击，抨击，（队员等的）进攻，（疾病）侵袭；vt. 抨击，非难，侵袭，损害；

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。

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。

vertigo

n. 眩晕，头晕；

例句
If you have vertigo it seems as if the whole room is spinning round you...
如果你头晕，就会觉得整个房间都旋转起来。