One day in 1939 an " Autogyro landed on the ballfield and remained a short time .
One day in 1939 , an " autogyro " landed on that ballfield and remained a short time .
One day in 1939 , an " autogyro " landed on that ballfield and remained a short time .
重写这句话: One day in 1939 an " Autogyro landed on the ballfield and remained a short time . 输出: