a fashionable and expensive district of Washington, DC. It is on the Potomac River and is the oldest area of the city. Georgetown University, one of the best in the country, was established in 1789. 乔治敦(Georgetown):华盛顿特区一个时尚而昂贵的地区。它位于波托马克河上,是这座城市最古老的地区。乔治敦大学是美国最好的大学之一,成立于1789年。