key
stone
复数形式
keystones
1
拱顶石, 基石
a stone located at the top center of an arch, keeping all the other stones together
In architecture, a keystone is the central stone at the top of an arch that holds the other stones in place. It is typically larger than the other stones and is shaped to fit perfectly into the arch's curve. The keystone plays a crucial role in distributing weight and maintaining the stability of the arch. Besides its functional importance, the keystone can also serve as a decorative element, often featuring unique carvings or designs. This feature enhances the overall beauty of the structure while providing essential structural support.
- The archway was supported by a central keystone, which locked the structure into place and distributed the weight evenly.
拱门由一块中央的拱顶石支撑，它将结构锁定到位并均匀分布重量。
- The Renaissance bridge featured a carved keystone depicting a mythological figure, serving as a focal point of the design.
文艺复兴时期的桥梁有一个雕刻的拱顶石，描绘了一个神话人物，作为设计的焦点。
- The neoclassical building had a pediment adorned with a sculpted keystone, symbolizing strength and stability.
这座新古典主义建筑有一个饰有雕刻拱顶石的山墙，象征着力量和稳定。
- The Gothic cathedral's ribbed vaults met at the keystones, creating a network of intersecting arches that soared overhead.
哥特式大教堂的肋状拱顶在拱顶石处相遇，形成了一个在头顶上高耸的交叉拱网络。
- The Art Deco façade was embellished with geometric motifs, including a stylized keystone at the center of each archway, adding a touch of modern elegance.
装饰艺术风格的外立面装饰有几何图案，包括每个拱门中央的风格化拱心石，增添了一丝现代优雅。
2
a central element or factor that provides essential support or cohesion to a system or concept
- Trust is the keystone of any successful relationship.
- Renewable energy is the keystone of the city's sustainability plan.
- Education serves as the keystone of societal development.
- Communication was the keystone of the team's success.
- Ethics act as the keystone in the company's corporate culture.