extrapolate[ek'stræpəleit]vt.1.■推断，推延，推定，推知，推测：to extrapolate public opinion from the public's known reactions to other issues从公众对其他问题的已知反应来推测民意2.■【统计学】外推，外插3.■【数学】外推，用外推法求，推定诸元vi.1.■进行推断；进行外推，外推：to extrapolate from today's information从今天的信息对未来进行推断变形vt.extrapolatedextrapolating