描寫思路：可以從介紹北京故宮的來歷作為開頭，描述故宮的布局、大小、以及構成，正文：
北京故宮是中國明清兩代的皇家宮殿，舊稱紫禁城，位於北京中軸線的中心，是中國古代宮廷建築之精華。
The the Imperial Palace of Beijing is the imperial palace of the two dynasties in Ming and Qing Dynasties, formerly known as the Forbidden City, located in the center of Beijing's central axis. It is the cream of ancient Chinese palace architecture.
北京故宮以三大殿為中心，占地面積72萬平方米，建築面積約15萬平方米，有大小宮殿七十多座，房屋九千余間。是世界上現存規模最大、保存最為完整的木質結構古建築之壹。
Beijing Palace Museum is centered on three main halls, covering an area of 720,000 square meters, with a construction area of about 150,000 square meters. It has more than 70 palaces and more than 9,000 houses. It is one of the largest and most complete ancient wooden structures in the world.
北京故宮於明成祖永樂四年（1406年）開始建設，以南京故宮為藍本營建，到永樂十八年（1420年）建成。
The Beijing Palace Museum was built in 1406 in Yongle, Chengzu, Ming Dynasty. It was built on the basis of the Nanjing Palace Museum and completed in 1420 in Yongle, Ming Dynasty.
它是壹座長方形城池，南北長961米，東西寬753米，四面圍有高10米的城墻，城外有寬52米的護城河。紫禁城內的建築分為外朝和內廷兩部分。
It is a rectangular city pool, 961 meters long north and south, 753 meters wide East and west, surrounded by a wall 10 meters high, and 52 meters wide moat outside. The buildings in the Forbidden City are divided into two parts: the Outer Dynasty and the Inner Court.
外朝的中心為太和殿、中和殿、保和殿，統稱三大殿，是國家舉行大典禮的地方。
The center of the foreign Dynasty is the Hall of Taihe, the Hall of Zhonghe and the Hall of Baohe, which are collectively called the three halls.?
內廷的中心是乾清宮、交泰殿、坤寧宮，統稱後三宮，是皇帝和皇後居住的正宮。
They are the places where the national ceremonies are held. The center of the Inner Court is the Qianqing Palace, Jiaotai Palace and Kunning Palace, which are collectively called the Hou Three Palaces and are the main palace where emperors and queens live.