雅思官方词库速背精选(分类版)词汇表

hysteria anaemia diarrhea rabies cardiology malaria cholera allergy vomit viral toxin poison virus asthma pneumonia inflammation transmission contagion infection accurate congenital malign benign acute infectious contagious morbid malfunction endemic token omen indication symptom sanitorium epidemic sanitation landfill renewable energy sewage waste trash junk rubbish litter contaminant garbage pollutant lumber reforestation deforestation arability cultivable arable reclamation reclaim irrigation poultry pet pesticide pest terrace diameter radius margin border perimeter circumference geometrician geometrical geometry decade denominator fraction function decimal digitize digit digital formula division subtraction multiply addition equation corruption erosive caustic corrosive synthesise synthesis neutral neutralise stove oven furnace combustible burning combustion annoy ally alloy monoxide oxygen ozone hydrogen molecule module atomic atom gravity explosive erupt explode burst blowout resonance ultrasonics supersonic ultrasonic freeze congeal caloric thermal unsolvable insoluble soluble dissoluble dissolvable dissolve smeltery smelt volatilise volatility volatile extraction extract dilute liquidity fluid evaporation evaporate purify distill sparkle froth bubble foam steamer steamboat gas steam vapour smoke fume radiation glitter glimmer flare reflex beamy beaming shine ray beam flash wink twinkle blink digestion digestive digest excretive excrete expiration inhalation metabolic respiration respire respiratory pregnant maternity gestation pregnancy scarlet wound scratch blemish scar embryo neural nervous nerve kidney backbone skeletal skeleton colour appearance complexion tissue organism organic apparatus palm bow eyebrow forehead brow shoulder arm waist wrist elbow thigh limb fitting fitness physiologist physiology physiological calf ostrichlike ostrich insect butterfly wasp moth aphid mosquito spider beetle larva evolutionary progress development evolution incubation incubator breeder breeding produce raise cultivate breed reproduction incubate brood hatch predator omnivore