1.既......又

both...and

2.广泛存在于中国人的生活中

widely exist in the life of Chinese people

3.秦汉时代the Qin and Han Dynasties

4.在魏晋南北朝时期 during the Wei, Jin, Southern and Northern Dynasties

5.灿烂的中华文明brilliant Chinese culture

6.中国传统习俗traditional Chinese custom

7.扮演重要角色play an important role; play a significant role

8.公元前5 世纪 the 5th century BC

9.世界不同民族different nations in the world

10.做出独特贡献make unique contributions

11.4,000 多年前more than/over 4,000 years ago

12.一些独特的发明some unique inventions

13.革命性的变化revolutionary changes

14.人类文明的标志a symbol of human civilization

15.家庭教育family education

16.世界经济发展the development of global economy; global economic development

17.起源于derive from/stem from/originate from/spring from..

18.一位杰出的艺术家 a prominent/distinctive artist

19.国际影响力international influence

20.提升生活品质enhance the quality of life