纸是中国古代四大发明之一，大约在2000年前由蔡伦发明。
Paper, one of the four greatest inventions in ancient China, was invented by Cai Lun about 2, 000 years ago.
这不是中国古代四大发明其中的两个吗？
中国古代四大发明是什么？
丝绸，中国历史上最早的发明之一，与中国古代文明中的四大发明一样，都产生过世界性影响。
Silk, as one of the earliest inventions in Chinese history, like Chinese four great inventions of ancient civilizations, have impacted the world widely.
在文艺复兴的欧洲，以四大发明为代表的中国古代文明使欧洲复兴成为可能。
In the Renaissance of Europe, with four great inventions, as a representative of the ancient Chinese civilization make European Renaissance possible.
指南针是中国古代“四大发明”之一。
The compass is one of the four great inventions of ancient China.
指南针是中国古代“四大发明”之一。
Thee compass is one of the four great inventions of ancient China.
指南针是中国古代“四大发明”之一。
Thee compass is one of the four great inventions of ancient China.
应用推荐