柯林斯英汉双解大词典
keystone /ˈkiːˌstəʊn/
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1.
N-COUNT A keystone of a policy, system, or process is an important part of it, which is the basis for later developments. 基础; 根本
例：The government's determination to beat inflation has so far been the keystone of its economic policy.
政府对通货膨胀的坚决抑制迄今为止一直是其经济政策的根本。
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2.
N-COUNT A keystone is a stone at the top of an arch, which keeps the other stones in place by its weight and position. 拱顶石 [技术]
双语例句权威例句
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The weight of the building is absorbed by the key stone in the centre of the arch, and distributed evenly over the entire span of the arch and then down into these two side pillars.
该建筑的重量是被在拱门中央的拱石顶所吸收，并且均匀的被分布在拱门的全跨度上，于是再下到这两边的柱子里。
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With no Rosetta Stone to act as a key for translation, the best we can do is guess at their purpose.
没有罗塞塔石碑语言软件作为翻译，我们最合适做的就是去猜测它们出现的目的。
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Step off the key-locked elevator into a home where steel, glass, stone and wood mingle to stunning effect, yielding an experience that is at once striking and serene.
穿过带锁的电梯，走入到满是钢筋、玻璃、石头和木材混搭出的超美感觉的家，以往经验告诉我们，立马有种十分引人注目和安静的感觉。
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