- 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 inflation low is the keystone of their economic policy.
- 2. Social justice is the keystone of their political program.
- 3. Quantitative measurements of one sort or another serve as the keystone of engineering practice.
- 4. The keystone to any marriage is one word: " WE ".
- 任何婚姻的基石只有两个字: “ 我们 ”.
- 5. Advancing suburban assurance is the difficulty and keystone of domestic insurance enterprise.
[ keystone 造句 ]