keystone

英 [ˈkiːstəʊn]

美 [ˈkiːstoʊn]

n.  拱顶石; (计划、论据的)主旨，基础

复数：keystones　

IELTS

BNC.21380 / COCA.17516

牛津词典

noun

• 拱顶石
  the central stone at the top of an arch that keeps all the other stones in position
• （计划、论据的）主旨，基础
  the most important part of a plan or argument that the other parts depend on

柯林斯词典

• 拱顶石
  Akeystoneis 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
  Akeystone ofa policy, system, or process is an important part of it, which is the basis for later developments.
  1. 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。

英英释义

noun

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

双语例句

• We recognize that keystone has been caught up in political gridlock in this country.
  我们知道Keystone项目已在美国陷入了政治僵局。
• A pointed arch; usually has a joint ( instead of a keystone) at the apex.
  一种尖角拱；在顶点通常有一个接合点（而不是拱心石）。
• Currently, revitalizing the commerce railway system has been included in the program of'urban rebirth'as a keystone.
  目前，重振铁路商业已列入“都市再生”计划，并作为一个重点。
• Note that keystone and nova use slightly different variable names in their client initializer methods, so I define separate functions for each.
  请注意，keystone和nova在其客户端初始化器方法中使用了稍微不同的变量名，所以我为每个工具定义了不同的函数。
• We hope to see you become a keystone of the intellectual community.
  我们希望看到你们成为知识界的一块拱顶石。
• HTTPS is the keystone of Internet security and privacy.
  HTTPS现在是互联网安全和隐私保护的基石。
• Japan's co-operation was the keystone in developing the regional agreement.
  日本的合作是发展地区和睦的基础。
• Annotation is the keystone of the knowledge representation of any natural language processing ( NLP) research.
  标注集是任何自然语言处理研究中的知识表达基础。
• It can obtain these parameters from Keystone, as well.
  也可以从Keystone中获得这些参数。
• Keystone is to study the maneuverability and how to cut out the management technology to reduced cost, achieve the management targets of project in the middle and small software development enterprise.
  重点研究可操作性和管理技术如何裁剪使管理成本降低，达到中小软件开发企业项目管理目标。