keystone

• n.基調、基本原理; [造られた]くさび

鍵、鍵、鍵、石、石。楔石は鍵の形をしているため、最も重要な石でもある。key、keystoneから派生。

keystone (n.)

"stone in the middle of an arch, which holds up the others," 1630s, from key (n.1) in figurative sense of "that which holds together other parts" + stone. Figurative sense is from 1640s. Pennsylvania was called the Keystone State because of its position (geographical and political) in the original American confederation, between northern states and southern ones. Keystone cops were the bumbling police in the slapstick silent movies produced by Keystone Company, formed by Canadian-born U.S. film director Mack Sennett (1884-1960) in 1912.

1. Keeping infration low is the keystone of their economic policy.

インフレ率を低いレベルに保つことが彼らの経済政策の主旨である。

2.Social justice is the keystone of their political program.

社会公平は彼らの政治綱領の基本原則である。

3.Quantitative measurements of one sort or another serve as the keystone of engineering practice.

1つ以上の成分を定量的に測定することは環境工学における重要な項目である。

4.The keystone to any marriage is one word:"WE ".

どんな結婚の礎石も2文字しかありません。「私たち」.

5.Advancing suburban assurance is the difficulty and keystone of domestic insurance enterprise.

農村保険の発展は我が国の保険業の発展の難点と重点である。