Word · Frequency #15251
extrapolate
推断；外推
to infer or estimate something unknown by using known facts or information
- 1.
To infer by extending known information.
由已知信息外推而推断。
- 2.
To estimate the value of a variable outside a known range from values within that range by assuming that the estimated value follows logically from the known ones
根据已知范围内的数值,假定其逻辑延续,估算范围外的变量值。
由已知信息外推而推断。；根据已知范围内的数值,假定其逻辑延续,估算范围外的变量值。；推断；外推
In use
From last year's results, we can extrapolate how much the company might grow in the coming months.
The scientists extrapolated the temperature trend and predicted a warmer winter.
Extrapolating from the survey data, the team expects sales to rise.
extrapolate sth from sth
Researchers extrapolated the results from a small sample.
研究人员从一个小样本中推断出这些结果。
extrapolate from sth to sth
作不及物动词时，常用 from…to… 表示从已知情况推断未知情况。
It is risky to extrapolate from one year's data to next year's trends.
根据一年的数据推断下一年的趋势是有风险的。
extrapolate that ...
Connections
Collocations
- extrapolate from data
- 从数据中推断
- It is difficult to extrapolate from such limited data.从如此有限的数据中进行推断是困难的。
- extrapolate results to
- 将结果外推到
- We cannot extrapolate these results to other age groups.我们不能把这些结果外推到其他年龄组。
- extrapolate into the future
- 外推到未来；推断未来
- It is risky to extrapolate current trends into the future.把当前趋势外推到未来是有风险的。
- extrapolate beyond the evidence
- 超出证据进行推断
- The journalist extrapolated beyond the evidence in the report.那名记者在报道的证据之外进行了推断。
- extrapolate from past experience
- 根据以往经验推断
- You cannot simply extrapolate from past experience to predict the outcome.你不能仅仅根据以往经验来推断结果。
Learner notes
Memory Tip
联想 extra（额外/向外），把已知数据向外推，即“外推、推断”。
Context & Register
语域：formal 常见场景：academic writing、data analysis、scientific research 该词多用于学术或技术性语境，表示根据已知信息进行推断或外推；日常口语中较少出现，正式写作中更合适。
Pronunciation & Spelling
没有与 extrapolate 完全押韵的常用词（其重读元音为 /æ/，后接 /pəleɪt/）。拼写相似的词请注意读音差异：interpolate /ɪnˈtɜːrpəleɪt/ 重读元音是 /ɜːr/，与 /æ/ 不同；late /leɪt/ 和 translate /trænzˈleɪt/ 的 /leɪt/ 是重读，而 extrapolate 的 /leɪt/ 是非重读；legislate /ˈledʒɪsleɪt/ 和 isolate /ˈaɪsəleɪt/ 重音在前，结尾也是非重读 /leɪt/；desolate 作形容词时读 /ˈdesələt/，结尾是 /lət/，不是 /leɪt/。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.