created sense approved 青石 · qīngshí · bluestone
青石
qīngshí
bluestone
a dense, bluish-grey rock, typically a variety of limestone, used as a construction or paving material
古镇的小巷全是由青石铺就的,显得古朴典雅。
noun
created sense approved 青石 · qīngshí · limestone
青石
qīngshí
limestone
the colloquial name for limestone, especially when referred to as a raw material for industrial use
这里的青石矿藏非常丰富,是烧制石灰的上等原料。
noun