extrapolateWiktionary 原文英美/ɛkˈstræp.əˌleɪt/v.推断，外推中文释义来自 ECDICT构词拆解extra-前缀+interpolate词干extra-Outside of, beyond.词源说明From extra- + (inter)polate.释义动词verb1transitiveTo infer by extending known information.2(transitive, mathematics) To estimate the value of a variable outside a known range from values within that range by assuming