1. 如此重大的問題不得不成為大選中人們激烈辯論的議題，這很令人遺憾。可這場辯論至少應該是建設性的。
   It was regrettable that such great issues had to be the thrust and parry of a general election. But at least the debate should be constructive.
2. 歷史證明，在每次重大的政治變革之后隨之而來的往往是經(jīng)濟上的復興。
   History bears evidence that each momentous political change is usually followed by an economic revival.
3. 這是所做出的最重大的發(fā)現(xiàn)之一。
   It was one of the most important discoveries ever made.
4. 這次新發(fā)現(xiàn)的石油對這個地區(qū)的經(jīng)濟有著重大的意義。
   This new discovery of oil is of great significance to this area's economy.
5. 印刷術的發(fā)明在社會上引起了重大的變化。
   The invention of printing caused important changes in society.

重大的英語翻譯：