那个黑洞，大家称它为唱诗台，经过一条过道，和修院相通。
That cavern, which was called the choir, communicated with the cloister by a lobby.
在冬天那儿总是比我们这里先下霜；盛夏时，在东北面那个黑洞里我还发现过雪哩！
In winter the frost is always there before it comes to us; and deep into summer I have found snow under that black hollow on the North-East side!
科学家提出那个黑洞周围的气体和尘埃并没有落入其中而是形成某种物质。
Scientist have proposed that gas and dust surrounding the black hole don't fall in but form a certain substance.
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