It is understood that the new bombs are more powerful than the old and that , while one atomic bomb could obliterate hiroshima , one hydrogen bomb could obliterate the largest cities such as london , new york , and moscow 不言而喻，新炸弹比旧炸弹更具威力? ?一颗原弹能毁灭广岛，而一颗氢弹能毁灭像伦敦、纽约和菲斯科这样的大都市。
We should remember the days when scientists of the older generation , such as qian xuesen , li siguang and qian sanqiang , developed the atomic and hydrogen bombs , satellites and many other high technologies under extremely difficult conditions 大家要记住那个年代，钱学森、李四光、钱三强那一批老科学家，在那么困难的条件下，把两弹一星和好多高科技搞起来。
But these people should remember it s not god who does all these things . it is we who have made all these troubles . for example , a few nations always test the atom bomb and hydrogen bomb , which disturbs the structure of the atmosphere , shaking the stability of the earth 这些人应该记住这一切不是上帝造成的，是我们自己制造这些麻烦，例如有一些国家不断地在试验原子弹和氢弹，这种试验干扰了大气层的结构，以致于造成了地球的不稳定。
