- beltway (n.)
[beltway 词源字典]
- term in U.S. for a ring highway around an urban area, especially Interstate 495 around Washington, D.C., the Capital Beltway, completed 1964; from belt (n.) + way (n.). Figurative for "Washington, D.C., and its culture" for better or worse, since c. 1978.[beltway etymology, beltway origin, 英语词源]