1
the capstone of sth
of 后接墙、塔、建筑物等具体结构，表示顶石所属的对象。
The capstone of the wall was carved with a pattern.
墙的顶石上刻有图案。
顶石；压顶石
先理解核心含义，再看它在真实句子里的用法。
顶石；压顶石
a stone that forms the top of a wall or building
The capstone of the wall was carved with a pattern.
墙的顶石上刻有图案。
墙壁顶层的任何一块石头；压顶石。
Any of the stones making up the top layer of a wall; a coping stone.
最高成就、高潮或点睛之笔。
A crowning achievement, culmination or finishing touch.
The mason carefully placed the capstone on the wall.
泥瓦匠小心地把顶石放在墙上。
Workers lifted the heavy capstone to finish the building.
工人们抬起沉重的顶石来完成这座建筑。
Each tower was crowned with a carved capstone.
每座塔顶都有一块雕刻的顶石。
of 后接墙、塔、建筑物等具体结构，表示顶石所属的对象。
The capstone of the wall was carved with a pattern.
墙的顶石上刻有图案。
set/place 表示放置动作，on 后接放置顶石的结构。
Workers set a capstone on the new tower.
工人们在新塔上安放了一块顶石。
Not this
He put capstone on top of the wall.
Use this
He put a capstone on top of the wall.
capstone 是可数名词，单数形式不能单独使用；泛指一块顶石时需要加不定冠词 a。中文没有冠词，所以容易漏掉。
Not this
These capstone are used to finish the roof.
Use this
These capstones are used to finish the roof.
these 和复数动词 are 都要求后面的名词用复数；capstone 的复数是 capstones。中文名词没有复数变化，所以容易漏加 -s。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
金字塔的顶石
The capstone of the pyramid was missing for centuries.
金字塔的顶石失踪了几个世纪。
花岗岩顶石
The granite capstone sits at the top of the monument.
花岗岩顶石位于纪念碑的顶部。
顶部砌块；压顶石块
Workers lifted the capstone block into place with a crane.
工人们用起重机将压顶石块吊装到位。
墙上的压顶石
The capstone on the wall protects the brickwork from rainwater.
墙上的压顶石保护砖墙免受雨水侵蚀。
装饰性顶石
A decorative capstone crowns the entrance gate.
一座装饰性顶石覆盖在大门顶部。
Use capstone naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
助记联想：capstone = cap（帽子）+ stone（石头），像帽子一样压顶的石头。
语域：formal 常见场景：architecture、building construction、masonry capstone 表示“顶石”时，通常用于建筑学、建筑工程或石工等较正式的书面语境，日常口语中比较少见。
这些词都含有 capstone 里的拼写块 cap /kæp/ 或 stone /stəʊn/。所有 -stone 词都以与 capstone 末尾相同的 /stəʊn/ 音结尾；不过 capstone 的重音在第一个音节 cap 上，所以它们并不算严格的押韵。注意 capsize /kæpˈsaɪz/、capsule /ˈkæpsjuːl/ 这类形近词，虽以 cap- 开头，但元音和结尾都不同。
Dictionary facts from ECDICT, WIKTIONARY.