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

• The keystone of this paper was to establish and calibrate and validate these four new modules.
  本文的研究重点是建立和验证新增的四个模块。
• 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。
• Social justice is the keystone of their political program.
  社会公平是他们政治纲领的基本原则。
• One additional service of Keystone is the service catalog used for end point discovery.
  Keystone的一个附加服务是用于端点发现的服务目录。
• As the classic adjacent exits and entrances, weaving areas are the keystone and difficulty of traffic study.
  交织区作为典型的相邻出入口，是交通领域研究的重点和难点。
• By this problem of the counteracted system, the keystone on jamming counteraction is analyzed and the primary factors which affect the counteracted capability are discussed.
  针对对消系统面临的这一问题，分析了干扰对消的基本原理，并对影响对消性能的主要因素进行了深入探讨。
• Industry is the soul of business and the keystone of prosperity.
  勤劳是事业的灵魂和成功的基石。
• 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。
• 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。
• 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。