I think it is still unclear whether black holes play any role in the formation of the first galaxies.
我认为到底黑洞在最初的星系形成过程中扮演什么样的角色，这仍然是不清楚的。
Tea, whether black or green, caffeinated or decaffeinated (herbal teas don't count), has spectacular antioxidant capabilities owing to large amounts of substances called flavonoids.
茶，无论是黑色或绿色，含咖啡因或不含咖啡因(当然草药茶不计数)，由于其含有大量的所谓的黄酮类化合物，因此，茶具有强大的抗氧化功能。
It might seem like an absurd idea, but physicists have long pondered whether black holes could one day be tapped for energy. But how possible is it?
这似乎是天方夜谭，但物理学家们一直以来都在思考有朝一日黑洞是否可以被用作能源之地。然而，这可能吗？
It might seem like an absurd idea, but physicists have long pondered whether black holes could one day be tapped for energy. But how possible is it?
这似乎是天方夜谭，但物理学家们一直以来都在思考有朝一日黑洞是否可以被用作能源之地。然而，这可能吗？
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