Suddenly, I heard a frail crying sound, like the bleat of a small lamb.
突然,我听到了一个微弱的声音,好象是小羊的叫声。
That is to say the "crying sound" is an exact result of this expansion-contraction process.
这也就是说,岩石的“哭声”正是由这种膨胀和收缩的过程产生的。
It was a curious sound—it seemed almost as if a child were crying somewhere.
这是一种奇怪的声音——好像几乎有个孩子在什么地方哭。
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