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

• Administrative functions in Keystone define users and projects and assign the appropriate authorization.
  Keystone中的管理功能定义了用户和项目，并分配了适当的授权。
• 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。
• How to construct terrain models and their texture is a research keystone.
  方便、有效地建立地形模型及其纹理是地形景观研究的重点。
• 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。
• 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。
• 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。
• Nowadays, biosorbents become the hotspot and keystone of the researches on treating heavy metals and POPs.
  目前，生物吸附剂已成为处理重金属和持久性有机污染物研究的热点和重点。
• Each Keystone function supports back-end plug-ins for integration into heterogeneous environments and to expose diverse functionality.
  每个Keystone功能都支持用于集成到异构环境并展示不同功能的后端插件。
• Our product is combined Chinese's religion keystone and modern technologies.
  本产品是依据中国宗教的原理与现代科技研发而成。
• 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。