介绍了广义相对论中的奇点困难和霍金与彭若斯给出的著名的奇点定理的证明。
The singularity difficulty and the proof of the famous singularity theorems given by Hawking and Penrose in general relativity are introduced.
塞巴斯蒂安•若泽•德•卡尔瓦略•伊•麦罗（就是人们在历史中所熟知的彭巴尔侯爵），葡萄牙伟大的变革者之一，负责重建工作。
The man in charge of reconstruction, Sebastião José Carvalho e Melo (better known to history as the Marquis of Pombal), was one of Portugal's great modernisers.
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