n. （由已知资料对未知事实或价值）推算, 推断( extrapolate的名词复数 )

v. （由已知资料对未知事实或价值）推算, 推断( extrapolate的第三人称单数 )

v draw from specific cases for more general cases

v estimate the value of

v gain knowledge of (an area not known or experienced) by extrapolating