大学英语：significantly adv. considerably (相当数量地);meaningfully (有意义地)

　　significant adj. important，meaningful (意义重大的)

　　marked，considerable (不必忽略的;相当数量的)

　　significance n. consequence (意义;影响) implication(含义)

　　1)Their opinions don't differ significantly from each other.　(他们俩的看法没有明显差别。)

　　2)He said to us significantly that education of the youth would be vital to the future of a country.　(他意味深长地对我们说年轻人的教育对于一个国家的未来至关重要。)

　　3)July 4 is a significant date for Americans.　(对美国人来说七月四日是一个意义重大的日子。)

　　4)There has been a significant increase in juvenule crime in recent years.(近年来，青少年犯罪活动有了相当大的增加。)

　　5)This is an event of great significance.　(这是一个非常重大的事件。)

　　6)It is necessary to attach great significance to environmental protection.(重视环境保护是必要的。)