如此重大的问题不得不成为大选中人们激烈辩论的议题，这很令人遗憾。可这场辩论至少应该是建设性的。 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.
历史证明，在每次重大的政治变革之后随之而来的往往是经济上的复兴。 History bears evidence that each momentous political change is usually followed by an economic revival.
这是所做出的最重大的发现之一。 It was one of the most important discoveries ever made.
这次新发现的石油对这个地区的经济有着重大的意义。 This new discovery of oil is of great significance to this area's economy.
印刷术的发明在社会上引起了重大的变化。 The invention of printing caused important changes in society.
