单词
					igneous
读音
					null
					
							美式
						
						
							英式
						
					词根
					无
释义
					火成岩
例句
					
					强化记忆
					无
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						As the magma moves towards  the Earth’s surface,it crystallizes to form young,  hot igneous rocks.The heat from these rocks drives  groundwater towards the surface.
								You can't have a fossilin an igneous rock formed by magma, like a granite,or in a metamorphic rock that's been heated and squeezed.
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