自从1980年以来，我国建起了许多现代化的的翻译：Since 1980, China built many modern public domain 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Since 1980, China built a number of modern public property

Since 1980, China built many modern public domain

Since 1980, our country has built up many modernized public properties

Since 1980, our country has built many modern public domain

Since 1980, China built many modern public domain