extract
To remove or pull something out by force or through a specific process. It also refers to obtaining a particular substance, information, or detail from a larger source or context.
例句
3 / 5The dentist needed to extract the wisdom tooth because it was causing pain.
The dentist had to remove the wisdom tooth because it was painful.
The legal team worked for hours to extract a confession from the witness.
The lawyers spent a long time trying to get the witness to admit the truth.
I'm trying to extract that annoying splinter from my palm with tweezers.
I am attempting to pull out the small piece of wood from my hand.
词族
记忆技巧
Look at the prefix 'ex-' (out) and the root 'tract' (pull). Just like a 'tractor' pulls a plow, 'extract' means to 'pull out'.
快速测验
The software was designed to _______ keywords from thousands of documents automatically.
正确！
正确答案是： extract
例句
The dentist needed to extract the wisdom tooth because it was causing pain.
everydayThe dentist had to remove the wisdom tooth because it was painful.
The legal team worked for hours to extract a confession from the witness.
formalThe lawyers spent a long time trying to get the witness to admit the truth.
I'm trying to extract that annoying splinter from my palm with tweezers.
informalI am attempting to pull out the small piece of wood from my hand.
Scientists use specialized equipment to extract DNA from ancient fossils.
academicResearchers use tools to get genetic material out of old biological remains.
Our goal this quarter is to extract more value from our existing customer base.
businessOur objective is to get more profit or benefit from our current clients.
词族
常见搭配
常用短语
extract a heavy toll
to cause a lot of suffering, damage, or deaths
extract the truth
to find out the reality behind a situation
extract the essence
to identify the most important part of something
容易混淆的词
An abstract is a summary of a paper, whereas to extract is the physical or logical act of pulling something out.
Subtract is used specifically for taking away numbers in math, while extract is for removing items or substances.
使用说明
Use 'extract' when describing a process that requires effort, such as medical procedures, chemical processing, or getting difficult information. It is more formal than 'pull out'.
常见错误
Learners sometimes use 'extract' when they simply mean 'take'. Remember that 'extract' usually implies that the thing being removed is buried, hidden, or part of a larger mixture.
记忆技巧
Look at the prefix 'ex-' (out) and the root 'tract' (pull). Just like a 'tractor' pulls a plow, 'extract' means to 'pull out'.
词源
From Latin 'extractus', meaning 'drawn out', from 'ex-' (out) and 'trahere' (to draw or pull).
语法模式
快速测验
The software was designed to _______ keywords from thousands of documents automatically.
正确！
正确答案是： extract
相关词汇
相关词
example
A1An example is a specific thing or person that shows what a group or a rule is like. It is used to help explain something more clearly so that others can understand it easily.
always
A1This word describes something that happens at all times or on every occasion. It is a frequency adverb used to talk about habits, permanent truths, or repeated actions.
result
A1A result is something that happens or exists because of something else that happened before. It is often used to describe the final score of a game, the grade on a test, or the outcome of a specific action.
reason
A1A reason is a cause or explanation for why something happens or why someone does something. It is the information that answers the question 'Why?'.
research
A1A detailed study of a subject, especially in order to discover (new) information or reach a (new) understanding. It involves gathering facts and data to test a theory or solve a problem.
girl
A1A female child or a young female person from birth until she reaches adulthood. It is also commonly used to refer to a daughter or, in informal settings, to a young woman.
food
A1Food refers to any substance consumed by living organisms to provide nutritional support for the body. It can be of plant, animal, or fungal origin and contains essential nutrients like carbohydrates, fats, and proteins.
moment
A1A very short period of time or a specific point in time. It is often used to ask someone to wait briefly or to describe a significant event occurring right now.
himself
A1A reflexive pronoun used as the object of a verb or preposition when the subject is a male person or animal previously mentioned. It is also used to emphasize that a specific man or boy did something personally or without help.
force
A1Force is the physical strength or energy that is used to push or pull an object. It can also refer to an organized group of people, such as the police or a military group.
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