extrapolate

v. 预测，推测

extort, extortion, extortionate, extortionately, extortioner, extortionist, extra, extra-, extra-curricular, extra-marital, extra-sensory perception, extract, extraction, extractor, extradite, extradition, extramural, extraneous, extraordinarily, extraordinary, extrapolation, extraterrestrial, extraterritorial, extravagance, extravagant, extravagantly, extravaganza, extreme, extremely, extremism, extremist, extremity, extricable, extricate, extrinsic, extroversion, extrovert, extroverted, extrude, extrusion,