According to the 4-inch-wide arthropod, the entire planet-once nothing more than a large, tedious mass of molten rock-has really taken shape recently.
据这只4英寸长的节肢动物说，整个星球-除了大量的熔岩外一无所有-真的是最近才形成的。
When a large mass of dirt and rock falls into a body of water very quickly the water is displaced and starts racing away from the slide.
当大量泥石掉入水体时，大片的水会迅速涌出。
Boulder: also bowlder, a large rounded mass of rock lying on the surface of the ground or embedded in the soil.
巨砾，圆石：在地表上或埋在土壤中的大而圆的岩石块些美国现代作曲家。
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