单词	砂丘的
释义	砂丘的dunensis
随便看	positive elongation positive--elongation positive emotion positive emotionality positive emotionality(pe) positive emulsion positive end-expiratory pressure positive energy positive-energy positive energy flow positive-energy--state positive energy theorem positive error positive estuary positive eugenics positive euthanasia positive example positive--excess positive exponent positive eyepiece positive feed positive feed back positive feedback positive feedback amplifier positive feedback circuit