We're very pleased to have him in Washington, d.c..(他住在華盛頓哥倫比亞特區，我們非常高興。)

This portrait hangs in the National portrait Gallery of the Smithsonian, in Washington, d.c..(這幅畫懸掛在華盛頓特區的史密森學會國家肖像畫廊。)

I said I was in Washington, D.C., that night.(我說，那天晚上我在華盛頓特區。)

It hasn't progressed much in the past five years. She's going to Washington, d.c..(在過去的五年內并沒有多大的好轉，她正要去華盛頓的哥倫比亞特區。)

Dyeing poison dart frogs explore their exhibit at the National Zoo in Washington, d.c..(華盛頓特區的國家動物園中色彩斑斕的箭毒蛙正在四處游蕩。)

Washington, D.C., in an expensive city.(華盛頓特區，是一個高消費城市。)

The town is well placed for easy access to Washington D.C. and convenient for Dulles Airport.(這個小鎮離華盛頓和杜勒斯機場都很近。)

I Googled bariatric surgery Washington d.c..(我上網搜索了華盛頓州的減肥手術信息。)

Ms. Newman is a public relations professional in Washington d.c..(紐曼女士是華盛頓一位公關關系專家。)

Mamie is still alive and lives in the Washington D.C. area.(這位傳奇的瑪米現在住在華盛頓特區。)