4周搞定2000+托福核心词
discourteous = dis(不,非) + court(宫廷) + eous(…的) = 不是来自宫廷的礼节→无礼貌的
eous = eous(…的) = 气体的→气态的
需要点火→火成的
igneous
常考释义
Igneous and metamorphic rocks are more compact, commonly crystalline, and rarely contain spaces between grains.
火成岩和变质岩压实更紧，通常有结晶，并几乎没有粒间孔隙。
来源于：阅读OFFICIAL28 P1adj. 火成的【地质】
“The ultimate source of phosphate in Martian fluids is likely from the weathering of calcium-phosphate minerals in igneous rocks, ” the researchers write.
研究人员写道：“火星上液体中的磷酸盐，最初很可能是由于液体对火色岩石中磷酸钙矿物的侵蚀造成的。”
Igneous and metamorphic rocks are more compact, commonly crystalline, and rarely contain spaces between grains.
火成岩和变质岩压实更紧，通常有结晶，并几乎没有粒间孔隙。
来源于：阅读OFFICIAL28 P1However, even igneous and metamorphic rocks may act as groundwater reservoirs if extensive fracturing occurs in such rocks and if the fracture system is interconnected.
但是即便是火成岩和变质岩也可因裂缝大量发育并相互连接而成为储水层。
来源于：阅读OFFICIAL28 P1adj. 火的；似火的【技】<正式>
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