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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
      1. (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.
          1. 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
            1. 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 public life in Shanghai alley and pedestrian streets is the keystone of the study.
              人们在上海弄堂和步行街中的公共生活,是本文研究的重点。
            • Based on it, compared with overseas researchful status of MICE tourism, the paper further discusses the intending researchful keystone and direction of MICE tourism.
              在此基础上,对比国外会展旅游研究状况,进而探讨了会展旅游未来的研究重点和方向。
            • 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。
            • 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。
            • One of keystone's primary functions is to serve as a service catalog.
              keystone的主要功能之一就是充当服务目录。
            • 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。
            • 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 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。
            • 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。
            • In this paper, the general situation of mountain ecosystem was briefly introduced and the effects of keystone populations on the degraded ecosystem were discussed.
              简要介绍了岷江上游山地生态系统的概况,讨论了关键种群在退化生态系统研究中的作用和意义。