华盛顿哥伦比亚特区/ 華盛頓哥倫比亞特區 huáshèngdùngēlúnbǐyàtèqū Washington, D.C.
The capital city of the United States, located on the Potomac River. It is named to honor George Washington and Christopher Columbus. Often abbreviated as 华盛顿 huáshèngdùn or 华府 huáfǔ.