extortionist的复数形式怎么拼写

His act reminded us of that of an extortionist.他的行为使我们联想起勒索者....

n.敲诈者，勒索者，强求者...

extortionist的音标：extortionist的英式发音音标为：[ɪk'stɔ:ʃnɪst]extortionist的美式发音音标为：[ɪk'stɔʃnɪst]...