Word · Frequency #21380
keystone
拱心石；拱顶石
The top stone of an arch or vault that locks the other stones into place.
- 1.
The top stone of an arch.
- 2.
a central cohesive source of support and stability
支持和稳定的核心凝聚力来源
- 3.
Something on which other things depend for support.
- 4.
the central building block at the top of an arch or vault
拱顶或拱门顶部的中央建筑块
- 5.
A retail price that is double the cost price; a markup of 100%.
- 6.
The combination of the shortstop and second baseman.
游击手和二垒手的组合。
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
In use
The keystone of her argument was the lack of scientific evidence.
Small businesses are the keystone of the local economy.
Education is often considered the keystone of a successful society.
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。
be the keystone in [something]
"keystone" 在此处译为 "关键"，强调核心支撑作用。
This treaty is the keystone in the framework of international cooperation.
这项条约是国际合作框架中的关键。
Connections
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。
- keystone pricing
- 对半加价定价法（零售价为成本价的两倍）
- The shop uses keystone pricing on most of its goods.这家店对大部分商品采用对半加价定价法。
Learner notes
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。
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。
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.
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.