Sean听力词汇大全（第二部分）词汇表

bottom twist erode deform collapse shock quake vent ash volcanic eruption tornado hurricane flood sean hill landform mountain groundwater water cycle hail creek stream pond fall waterfall spring saline salt freshwater ice current ocean current ebb maritime marine water canyon drift hardness diamond quartz granite marble limestone silt clod sand erosion deposit sediment lava magma eruption volcano cone sloping dormant volcano extinct volcano active volcano iceberg interglacial period age glacial epoch glacial ice age glacier epicenter seismic wave seismic intensity magnitude seismic earthquake seismology global warming melt drought tidal force tsunami landslide undersea crack rift fault zone fault plane aquifer stratigraphy stratum layer oceanic continental lithosphere crust diagram technique plate tectonics feature geologist geyser hot spring moisture rainfall tide empty quarter coral island peninsula islet continental island coastland strait channel Colorado lake Nile Grand CANYON Death Valley valley swamp rain forest tundra grassland flatland plain slippery clay Sahara dune desert cavern depression lowland range highland topography underground subterranean continental shelf continental drift geographer temperate temperate zone frigid zone Antarctic South Pole Arctic North Pole polar region pacific ocean Atlantic continent horizon altitude height longitude hemisphere geology geography nucleus proton electron electromagnetism nuclear spiral rotate revolve sulfuric acid methane calculation mathematical elliptical debris periodic depress distortion metallic meteoroid meteorite encounter ensemble halo illuminate intricate project transient unaided velocity cosmos dark matter inflation orbit stellar fusion split crescent first quarter quarter last quarter eclipse total eclipse solar eclipse lunar eclipse Saturn Uranus Neptune geocentric heliocentric bombardment emit constellation hydrogen helium outer gravitation universe expansion analogous detector evaporation equator indistinguishable instrument latitude mantle molecule mineral proportion random seafaring terrestrial Hubble big bang theory celestial atlas Ceres radioactive zone photosphere chromosphere leap year reversal tilt hue siliceous carbonaceous counterclockwise magnetosphere regolith wane protostar