他还找到在地表以下有一层小石块。
He also found a layer of small stones just below the surface.
它在拉丁语里的意思是“从大石头上剥落的小石块”。
The earliest ancestor word in Latin has a meaning of small stones that have been chipped off a larger piece.
当冰舌融化时，土粒和小石块就脱离冰快并沉积下来。
As the front of a glacier melts, the soil and rock particles are released from the ice and deposited.
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