他判断准确无误,球一丢就空过洞。
通过砂坝底下建造地下管道或者在沙中开挖蓄水洞,便可以在雨后连续几个月内抽取这些自然净化过的水。
Clean water can be drawn for up to several months after the rains have fallen through pipes underneath the DAMS or by digging a hole in the sand.
但是在现实世界里这个想法无从下手,许多物理学家研究过我们是否真的能通过假设性“虫洞(天体物理学术语)”来跳跃空间。
While nothing even close has yet made its way to the real world, a number of physicists have studied whether we really could hurtle ourselves through a hypothetical wormhole.
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