It will attempt to fly nonstop for 120 hours (yes, that’s five successive days and nights) over oceans and continents without a drop of fuel. (Para. 3)
A、It plans to fly across oceans and continents without any stop for a continuous 120 hours (five days and nights in a row) by using no fossil fuel.
B、It will traverse through all the seas and lands on earth within 120 hours without gasoline.