parallel flight造句

The excavated architectural remains were of long rectangular houses containing two to three parallel flights of rooms, interpreted as mezzanines.
From the central arch is the staircase that leads to the subsequent floors, with landing and then parallel flights to the second floor.
When he missed the first airlift to America, Helen and Betty stepped in and raised money for him to travel on a parallel flight.
In the drawings of the model, the main staircase of the keep is shown with two straight, parallel flights of steps separated by a passage and is located in one of the arms of the cross.
It's difficult to find parallel flight in a sentence. 用parallel flight造句挺难的