keystone是什么意思？

keystone

英[ˈki:stəʊn] 美[ˈkistoʊn]

• n. 重点，要旨，基本原理，拱心石；

复数：keystones;

例句

• Advancing suburban assurance is the difficulty and keystone of domestic insurance enterprise. 发展农村保险是我国保险业发展的难点和重点.
• The keystone to any marriage is one word: " WE ". 任何婚姻的基石只有两个字: “ 我们 ”.
• Quantitative measurements of one sort or another serve as the keystone of engineering practice. 定量测定一种或多种成分是环境工程中的重要项目.
• The essentiality of fund and financing is the keystone of expatiation. 资金和资金筹集的重要性是阐释的重点.
• Keeping inflation low is the keystone of their economic policy. 将通货膨胀率保持在较低水平是他们经济政策的主旨。

柯林斯高阶英汉双解学习词典释义

• N-COUNT
  拱顶石
  A keystone is a stone at the top of an arch, which keeps the other stones in place by its weight and position.
• N-COUNT
  （政策、体系或进程的）基础，主旨
  A keystone of a policy, system, or process is an important part of it, which is the basis for later developments.
  例句
  Keeping inflation low is the keystone of their economic policy. 将通货膨胀率保持在较低水平是他们经济政策的主旨。

英英词典释义

• Noun
  1. a central cohesive source of support and stability;
  "faith is his anchor""the keystone of campaign reform was the ban on soft money""he is the linchpin of this firm"
  2. the central building block at the top of an arch or vault

行业词典

• 体育： 根本原理；要旨；二垒；