An unincorporated city of west-central Maryland, a residential suburb of Washington, D.C. The National Institutes of Health and Naval Medical Center are here. Population, 62,936.是什么意思_An unincorporated city of west-central Maryland, a residential suburb of Washington, D.C. The National Institutes of Health and Naval Medical Center are here. Population, 62,936.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句