extract sth
宾语多为具体事物，强调用力拔出或取出。
The dentist extracted the damaged tooth.
牙医拔掉了那颗坏牙。
拔出；取出；设法获取
extracted — past of extract
提取；萃取；榨取；摘录；选取；引用；求根；开方；抽出；拔出；用力从固定位置移除,如通过牵引或吸力等；通过挤压、蒸馏或其他机械或化学过程提取
to remove or pull something out, especially by force or effort
可指抽象含义，如获取信息、承诺等
抽出；拔出；用力从固定位置移除,如通过牵引或吸力等
To draw out; to pull out; to remove forcibly from a fixed position, as by traction or suction, etc.
通过挤压、蒸馏或其他机械或化学过程提取
To withdraw by squeezing, distillation, or other mechanical or chemical process. Compare abstract (transitive verb).
挑选出；引用或复制一段
To pick out; to cite or reproduce a snippet of
通常用一些力或努力移除；也用于抽象意义
remove, usually with some force or effort; also used in an abstract sense
选择整体的一部分
To select parts of a whole
确定(一个数的根)
To determine (a root of a number).
一般现在时
They extract oil from seeds.
他们从种子中提取油。
一般过去时
The dentist extracted my tooth yesterday.
牙医昨天拔了我的牙。
现在完成时
Scientists have extracted DNA from the fossil.
科学家已从化石中提取了DNA。
规则动词，过去式和过去分词直接加 -ed。
The dentist had to extract one of my wisdom teeth yesterday.
牙医昨天不得不拔掉我的一颗智齿。
用法提示：extract 在这里作及物动词，表示‘拔出、取出’。
AI contextual example
We can extract juice from the oranges with a simple press.
我们可以用简单的压榨器从橙子里榨出汁来。
用法提示：extract 强调通过物理方法‘提取、榨取’，常与 from 连用。
AI contextual example
The reporter extracted a short quote from the long interview for her article.
记者从漫长的采访中为她的文章摘录了一小段引语。
用法提示：extract 表示从中‘摘录、选取’内容，过去式为 extracted。
AI contextual example
宾语多为具体事物，强调用力拔出或取出。
The dentist extracted the damaged tooth.
牙医拔掉了那颗坏牙。
from 后接来源或出处，常用于提取物质、成分。
They extract oil from sunflower seeds.
他们从葵花籽中提取油。
from 后接人时，表示通过施压或努力从某人处得到信息、钱财等。
The police extracted a confession from the suspect.
警方从嫌疑人那里逼取了口供。
grammar · medium
易错句子Oil extracts from these seeds.
正确表达Oil is extracted from these seeds.
extract 表示“提取”时是及物动词，主语必须是执行提取的一方；当主语是被提取出来的东西（油）时，要用被动语态 is extracted。汉语“油从这些种子里提取出来”没有被动标记，容易让学习者直接写成主动句。
grammar · medium
易错句子I'm going to extract my tooth tomorrow.
正确表达I'm going to have my tooth extracted tomorrow.
拔牙的是牙医，患者是接受动作的一方。英语用 have + 宾语 + 过去分词（have my tooth extracted）表示“让别人为自己做某事”，不能把患者当成 extract 的主语。汉语“我明天去拔牙”不区分施事，容易造成这种误用。
grammar · medium
易错句子I need to extract some time to finish the report.
正确表达I need to find some time to finish the report.
extract 指用物理或化学方式从某物中取出具体的东西（如 extract oil from seeds），不能用于“抽出时间”这种抽象说法。汉语“抽出时间”会被逐字译成 extract，英语里应说 find / spare some time。
拔牙
The dentist had to extract a tooth.
牙医不得不拔掉一颗牙。
从…中获取信息
Police tried to extract information from the suspect.
警方试图从嫌疑人那里获取信息。
从…中提取油
They extract oil from these seeds.
他们从这些种子中提取油。
迫使…作出承诺
She finally extracted a promise from him.
她最终迫使他作出了承诺。
提取数据
The software can extract data from old files.
这款软件能从旧文件中提取数据。
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逼取口供
The police extracted a confession from him.
警方逼他作出了供认。