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
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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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This is a key topic for the first time to buy moire stone friends.
这一点对于头次购买龟纹石的朋友是一个关键话题。
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