前言
Parface
钦若昊天 敬授人时
Time Comes Heavenly, Served Sincerely
慈石司南 牵星过洋
Lodestone Governing South,Star-guided Ocean Crossing
计里画方 甄度四海
Grid Mapping,Land Surveying
一带一路 民心相通
One Belt One Road,People to People Bond
结束语
Conclusion
勾股定理
Shang Gao Theorem (Right Triangle Theorem)
