第一次世界大战期间，一种新型的攻防兼备的进攻性武器成了传统防御阵地的克星。1916年9月15日凌晨，法国北部索姆河战场一片沉寂。德军连日来多次击退英军的进攻，士兵们正在酣睡。突然，远处传来轰隆轰隆的沉闷声响，若远若近，大地也禁不住随之颤抖。只见一个个黑乎乎的庞然 During the First World War, a new type of offensive and defensive offensive weapon became the nemesis of a traditional defensive position. In the early morning of September 15, 1916, the Somme battlefield in northern France was quiet. In recent days, the Germans have repeatedly repulsed the British offensive and the soldiers are asleep. Suddenly, the dull sound of the roaring Bang was heard in the distance. If the distance was far, the earth could not help trembling. I saw a black monster