At first, I thought I had a puncture, and a concrete boulder fell onto my car.

一开始我还以为自己会被刺穿，一个巨大的混凝土柱子砸到了我的汽车上。

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This was strong enough to move a ten-ton boulder and it knocked over concrete barriers designed to divert water away from houses.

这个是强大的，大到足以移动一个十吨巨砾，它还能够打翻设计具体障碍，使离开水从转移到房子的。

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"The boulder signals a point in time and a concrete idea of the launch and a projection into the future, " said Mike Stanley.

BBC: Stone exhibit on a roll