The Chinese phrase Four Great Ancient Capitals of China (中国四大古都 pinyin zhong1 guo2 si4 da4 gu3 du1) refers to Nanjing, Beijing, Xi'an, and Luoyang.
... Infection of the urethra is urethritis, said to be more common in females than males. Urethritis is a common cause of dysuria[?] (pain when urinating). Related to ...