Construction and perfection

• 建立和完善

Construction and perfection的用法和样例：

例句

1. Feudal autocracy and centralism were established and reached perfection in this period.
   封建专制和中央集权制在此时期得到了建立和完善，并一直为后世封建帝王所效法。
2. The establishment and perfection of a modern system of sea, land and air traffic makes the geographic advantages of the Shantou Special Zone more obvious daily.
   海陆空现代化交通体系的建立和完善，使汕头特区的区位优势日益明显。