keystone

大学 FREQ #30068

n. 拱顶石, 楔石, 重点

发音

US /ˈkiː.stəʊn/

词形变化

keystones 复数 keystones keystoned keystones 三单 keystoning keystoning 现在分词 keystoned 过去式 keystoned 过去分词

教材释义与例句

名词

主旨，基本原则； 楔石

释义与例句

n.
  1. 1.

    The top stone of an arch.

    建筑
  2. 2.

    Something on which other things depend for support.

  3. 3.

    A retail price that is double the cost price; a markup of 100%.

    商务
  4. 4.

    The combination of the shortstop and second baseman.

    体育 游戏
v.
  1. 1.

    To distort (an image) by projecting it onto a surface at an angle, which for example causes a square to look like a trapezoid.

    及物
  2. 2.

    To double the cost price in order to determine the retail price; to apply a markup of 100%.

    及物 商务

词汇关系

名词

同义词 7

key anchor backbone headstone linchpin mainstay lynchpin

上位词 2

support building block

下位词 3

coign coigne quoin

整体词 1

arch

相关短语

keystone corner keystone species keystone pricing Keystone State na. 宾夕法尼亚州的浑名 [网络] 基石州；拱心石之州；磐石之州 keystone corners Keystone Cop Keystone Kop Keystone Kops Keystone Cops keystone effect [电] 梯形效应 keystone effects flagship species

词源

From key + stone. Definition 4 (retail) possibly originated in the jewelry industry in the magazine called "Jewelers' Circular-Keystone".

来源：wiktionary