雅思单字有秘密词汇表

cube contingent connotation cone concept classification circumference circle centre calculation association assessment arithmetic area arc approximate angle base altitude algebra adjacent addition accuracy vitamin valence test tube sulfur solvent solution solubility soda silicon salinity refine reducer reagent proton precipitation polymerization polymer petroleum periodic table oxygen oxidize nitrogen neutron neutralize molecule mineral lead isotope isomer ion iodine hydrolysis hydrogen hydrochloric hydrate helium graduate gel gasoline flask filter element electron electrolyte electrolysis electrode dye distillation dissolve derivative dehydrate crude oil compound combination cocaine chemistry cellulose catalysis carbon calcium butane atom aqua fortis analysis ammonia aluminium weight wavelength vibration velocity vector vacuum ultraviolet triangle trapezoid translucent transistor torque thermodynamics telescope statics solid semiconductor relativity rectangle pyramid pressure pitch physics outline optics optical opaque motion microwave microscope medium mechanics magnifier magnetism magnet lens intensity insulator inertia illustration icon gravity gravitation graph friction frequency force fluid equilibrium energy echo density coral reef concave battery analogy amplitude convex amplify alloy adiabatic adhere adaptation acyclic acute activity active activator activate acre acid acceleration absorbent absorb absolute abrasion abnormal vapor turbine sediment seawall seashore seafloor seabed runoff renewable oceanographic oblivion headwaters glaciation geothermal evaporate desalinization continental shelf coastline wave waterfall valley unfrequented ubiquitous tropic torrid territorial temperate swamp summit strait steppe spectacular slope skeleton shore scarp iron ore sandbank rugged ridge resort quarry pond plateau ore ocean mouth mountainous meridian massif location lava landmass landfall isthmus island invaluable hydrology hub hillside highland hair-raising gulf grassland gorge geographical environmental diversity disappearance desert delta continent coast cliff cascade cape canyon canal brook bed bay bank akin adversity