lie at the heart of

• 关键是； 核心是

lie at the heart of的用法和样例：

例句

1. The heart of the problem is a shortage of funds.
   问题的关键是缺乏经费。
2. The key thing is to catch the bar worker's eyes.
   关键是你要让酒保看见你。
3. The core of our appeal is freedom of speech.
   我们的要求的核心是言论自由。
4. At the heart of any integration is the sharing of data among various applications in the enterprise.
   信息整合的核心是在企业所使用的各种应用程序间共享数据。