Question: 美国是何时在广岛投下原子弹的
Answer: 1945-08-06; 1945 august, 06; 06/08/1945; 1945 8月 06; 08 06 1945; 1945-08-06; 06-08-1945; 1945 08 06; 08-06-1945; 08/06/1945; 06 08 1945; 06 8月 1945