We were given to understand that he was ill.

我们获悉他生病了。

《柯林斯英汉双解大词典》

Companys that have not insightfully examined the processes, and only take a summarized, bottom line view, typically do not understand why their process is ill.

没有深入分析过程，而只是概括地观察的公司一般不了解它们的过程为什么有问题。

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As researchers come to understand more about the mechanism that keeps some people safe, that knowledge could be used to help those who become ill.

研究人员逐渐深入了解这种金葡菌不危害人体安全的机理，这些知识可能对患者有帮助。

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Those people who understand his ill intent are the ones that hate him.

FORBES: Q and A: Thaksin Sits Down With

For good or ill, I do understand the machinery of news.

BBC: Newtown overwhelmed by media

The Supreme Court on Thursday ruled 5-4 in favor of a mentally ill murderer who does not understand the reason for his execution.

NPR: High Court Blocks Mentally Ill Inmate's Execution