One of the infants had an associated complex congenital cardiac anomaly.

一个婴儿还伴有复杂的先天心脏病。

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The information about these monumental events AND the technologies associated with them is highly complex but at the same time, incredibly exciting.

关于这些重大事件和相关科技的信息是高度复杂的，但同时也是难以置信地激动人心。

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It is able to handle complex issues associated with distributed applications.

它能够处理与分布式应用程序相关的复杂问题。

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Security was tightened across the entire complex, Associated Press news agency said, with dozens of police officers and armed soldiers on patrol.

BBC: Egypt closes Great Pyramid amid 11/11/11 rumours

Any document can contain any set of keys, and any key can be associated with an arbitrarily complex value that is itself a JSON document.

FORBES: What You Need to Know About NoSQL Databases

It turns out that the smart grid will also enable solutions to the complex operational challenges associated with many industrial applications under extreme conditions.

FORBES: World's First Subsea Smart Grid Changes Offshore Oil and Gas Game