建立于1964年，总共面积达20公顷。的翻译：Founded in 1964, the total area of 20 hectares. 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

Establish in 1964, a total area of ??20 hectares.

Founded in 1964, the total area of 20 hectares.

Established in 1964, altogether the area amounted to 20 hectares.

Established in 1964, with a total area of about 20 hectares.

Founded in 1964, the total area of 20 hectares.