求翻译：北京天坛占地272万平方米，整个面积比紫禁城（故宫）还大些，有两重垣墙，形成内外坛，主要建筑有祈年殿、皇穹宇、圜丘。是什么意思？

Beijing Temple of Heaven covers an area of ​​2.72 million square meters, the area ratio of the Forbidden City (Imperial Palace) is also bigger, has two Yuanqiang to form inside and outside the altar, the main building there of Heaven, Imperial Vault of Heaven, Circular Mound.

正在翻译，请等待...

The Beijing Temple of Heaven occupying a land area of 2,720,000 square meters, the entire area ratio Forbidden City (Imperial Palace) also big, have the twofold wall, forms inside and outside world, the main construction has the Qinian Hall, the emperor arched space, the round.

2.72 million square meters Temple, entire area than forbidden city (Palace) also bigger, with two crumbling walls and formed altar inside and outside, main building are pray for a good harvest Hall, Imperial vault of heaven, leaving Hill.

Beijing Temple of 2.72 million square meters, the entire area than the forbidden city (forbidden city) or greater, has a double wall, forming both inside and outside, mainly building Hall of Prayer for Good Harvest, the Imperial vault of heaven, the round altar.