这是继2018年和2019年之后，我第三次来到天池。
This is the third time I've been to the Heaven Lake after I came here in 2018 and 2019.
天池真是人世间的天堂！
如果黑洞不能对自己进行补充，它会最终像夏天池塘里的水一样完全蒸发。
If it failed to replenish itself it would eventually evaporate completely, like a puddle of water on a hot summer's day.
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