英語翻譯
On august 6,1945,an American aircraft dropped a bomb on the Japanese town of Hiroshima（廣島）.The bomb exploded 1,000 ft.above the ground.Within the fraction of a second,the bomb changed from a metal cylinder(圓柱狀)into an immense mass of expanding gas,millions of degrees hot.The air itself around the point of explosion began to burn.A shower of penetrating invisible rays attacked every living or dead thing in the town.Then followed a shock-wave (沖擊波) which shattered the buildings and a tremendous blast of hot air(熱浪) whirled the debris(碎片) of stone,concrete,metal,and wood over the ground.The explosion killed at least 140,000 people and left of thousands of others maimed(致殘) or disfigured for life.Three days later,yet another bomb of the same kind gave the town of Nagasaki(長崎)the same fatal blow.It killed an estimated 54,000 people and made one and a half square miles of the city an expanse of reddish rubble.Within the stricken area,not a single soul remained alive,and the city centre looked as if it had been razed by a monster steam-roller.