Word · Frequency #21380
keystone
拱心石；拱顶石
核心释义
The top stone of an arch or vault that locks the other stones into place.
- 1.
The top stone of an arch.
- 2.
支持和稳定的核心凝聚力来源
a central cohesive source of support and stability
- 3.
Something on which other things depend for support.
- 4.
拱顶或拱门顶部的中央建筑块
the central building block at the top of an arch or vault
- 5.
A retail price that is double the cost price; a markup of 100%.
- 6.
游击手和二垒手的组合。
The combination of the shortstop and second baseman.
基石；核心；关键；加价100%；成本价加倍；（棒球）二游组合；游击手与二垒手的配合；支持和稳定的核心凝聚力来源；拱顶或拱门顶部的中央建筑块
用法In use
The keystone of her argument was the lack of scientific evidence.
用法提示：keystone 在这里是名词，比喻论点中最关键、支撑整体的部分。
Small businesses are the keystone of the local economy.
用法提示：keystone 用作名词，指起核心支撑作用的事物。
Education is often considered the keystone of a successful society.
用法提示：keystone 作名词，表示基础性、决定性的要素。
the keystone of campaign reform was the ban on soft money
keystone of [something]
Education is the keystone of a successful society.
教育是成功社会的基石。
相关词与表达Connections
搭配Collocations
- keystone species
- 关键物种（对生态系统影响重大的物种）
- The sea otter is a keystone species in the kelp forest ecosystem.海獭是海藻林生态系统中的关键物种。
- keystone of the argument
- 论点的关键（核心依据）
- The DNA evidence is the keystone of the argument.DNA证据是这一论点的关键。
- keystone of the arch
- 拱门的拱顶石
- The mason carved the keystone of the arch from a single block of granite.石匠用一整块花岗岩雕刻拱门的拱顶石。
- keystone habit
- 核心习惯（能带动其他积极习惯的习惯）
- Getting enough sleep is a keystone habit for better health.充足睡眠是改善健康的核心习惯。
学习提示Learner notes
记忆技巧Memory Tip
记 keystone = key + stone：拱门顶部那块“钥匙石”一抽掉，整座拱就散架，所以它是支撑全局的关键。
语境与语域Context & Register
语域：formal 常见场景：建筑学（拱顶石）、抽象正式写作（核心/基石） keystone 在建筑学中指拱顶石，属于正式、技术性用语；引申义指事物的“核心”或“基石”，也多见于正式写作或抽象论述。日常口语中若想表达“关键”概念，用 key、foundation 等词会更自然。请根据语体选择，避免在随意的口语里显得生硬。
发音与拼写Pronunciation & Spelling
All these words rhyme with the final /stoʊn/ of 'keystone': stone, bone, cone, phone, throne, alone (the last is stressed on the second syllable, /əˈloʊn/, but ends with the same /oʊn/). They share the spelling pattern 'one'. Beware of lookalikes: 'key' (/kiː/) and 'keyboard' (/ˈkiːbɔːrd/) begin with the same 'key' spelling as 'keystone' but sound completely different; 'kestrel' (/ˈkestrəl/) is another lookalike with a different first syllable.
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.