extortionist

n. 强求者，勒索者

exterminate, extermination, external, external evidence, external examination, external examiner (also external), externalize, externalize, externalise, externally, extinct, extinction, extinguish, extirpate, extirpation, extol, extort, extortion, extortionate, extortionately, extortioner, extra, extra-, extra-curricular, extra-marital, extra-sensory perception, extract, extraction, extractor, extradite, extradition, extramural, extraneous, extraordinarily, extraordinary, extrapolate, extrapolation, extraterrestrial, extraterritorial, extravagance, extravagant,