The fireball ascended with great rapidity, the initial rate of rise being about a mile per second . 火球以很高的速度上升,上升的最初速度約為每秒1哩。
The fireball is no longer luminous but it is still very hot and it behaves like a hot-air balloon, rising at a rapid rate . 火球不再明亮,但它還很熱,并且象一個上升得很快的熱氣球一樣。
Immediately following the detonation of a nuclear weapon in the air, an intensely hot and luminous (gaseous) fireball is formed . 核炸彈在空中爆炸后,緊接著形成灼熱而明亮的(氣體)火球。
In a surface burst, large quantities of earth or water enter the fireball at an early stage and are fused or vaporized . 表面爆炸時,一開始便有大量的泥土或水份被卷入火球中,并熔化或汽化。
Fireball he has really been a fireball at the office 他在辦公室里工作干勁是十足。