She saw the heart of a problem, and she knew whom to hold accountable.

她可以一眼看到问题的核心所在，并且知道谁应该对这个问题负责。

youdao

For machinery and equipment, but also have their own heart, if the heart of a problem, in the absence of repair before use, the harm is very large.

对于机器设备来说，也有自己的心脏部位，如果心脏部位出现了问题，在没有修好之前使用，带来的危害是十分大的。

youdao

Being overweight increases the risk of having a heart problem.

超重会增加患心脏病的风险。

youdao

So, many people have relatives they know of that have had to have their heart imaged -- heart disease is a major problem in the United States, and there's a good chance that they had Cardiolite given to them to help in that imaging process.

它被用在心脏成像中,很多人都有一些亲戚他们-,必须要做心脏成像，心脏病已经是美国的一个主要问题,而很有可能他们就要用到Cardiolite来成像。

麻省理工公开课 - 化学原理课程节选

While that was certainly the genesis of the problem, it hardly gets to the heart of a problem that seems to speak more to culture than execution.

FORBES: Jamie Dimon: What I Learned From The London Whale

By one line of thinking, it should have been an easy case, because the patient was said to have died of an arrhythmia, a type of heart problem that Vioxx has not been shown to cause.

FORBES

At the heart of the problem is a lot of debt that really cannot be repaid.

FORBES: Greek People Stuck With Stinking Debt