他们说,这种危险可能会持续下去,直到海浪到达内陆坚硬的岩石区域,这些地方的岩石不会像石灰岩那样受到侵蚀。
The danger is likely to continue, they say, until the waves reach an inland area of hard rock which will not be eaten as limestone is.
大部分结晶岩石都非常坚硬,但也有例外,最常见的就是玄武岩,它是一种火山岩浆凝固后的形态,内部充满了微小的气泡,因此也具有多孔渗水的特点。
Most crystalline rocks are much more solid; a common exception is basalt, a form of solidified volcanic lava, which is sometimes full of tiny bubbles that make it very porous.
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