求翻译：当晚，二十世纪最大的地震发生了连北京都感到了，全国三分之一的地方都有震感。在十五秒钟之内，一座城市变成了废墟。很多人在地震中受伤或死去。很多孩子成了孤儿，死伤人数达四十万。人们看着，一切都毁了，医院，工厂，家园消失了。交通也阻塞了，牲畜也受了很大的影响。接着，又发生了地震，人们又受了伤。连水，食物，电都很难弄到。是什么意思？

That night, the 20th century's largest earthquake is felt even a Beijing, one-third of the place has its seismaesthesia, feel. Within 15 seconds, a city into a ruin. Many people were injured or died in the earthquake. Many children became orphans, casualties up to 400,000. People were looking, every