contamination
Contamination refers to the presence of unwanted or harmful substances that make something impure, dirty, or unfit for use. It is commonly used in scientific, environmental, and forensic contexts to describe the loss of purity through contact with a foreign element.
例句
3 / 5The contamination of the local pond by trash made it impossible to swim.
The polluting of the pond with garbage prevented people from swimming.
The authorities are investigating the potential contamination of the groundwater supply.
Officials are looking into the possible poisoning of the underground water sources.
There's some contamination in the lab sample, so we might have to start the test over.
The sample has been dirtied, so the test needs to be repeated.
词族
记忆技巧
Think of 'CON-TAM-ination' as 'Container Tampering'—someone tampered with the container and made the contents dirty.
快速测验
The laboratory had to discard the results because of accidental _______ of the DNA samples.
正确！
正确答案是： contamination
例句
The contamination of the local pond by trash made it impossible to swim.
everydayThe polluting of the pond with garbage prevented people from swimming.
The authorities are investigating the potential contamination of the groundwater supply.
formalOfficials are looking into the possible poisoning of the underground water sources.
There's some contamination in the lab sample, so we might have to start the test over.
informalThe sample has been dirtied, so the test needs to be repeated.
Researchers found significant levels of chemical contamination in the soil samples collected near the factory.
academicScientists identified high amounts of toxic chemicals within the dirt taken from the industrial area.
The food processing plant was closed due to suspected bacterial contamination in the packaging area.
businessThe factory shut down because they thought harmful bacteria had entered the packaging zone.
词族
常见搭配
常用短语
source of contamination
the origin of the polluting substance
avoid cross-contamination
taking steps to prevent the spread of germs between items
levels of contamination
the measured amount of impurities present
容易混淆的词
Pollution is a broad term for environmental damage; contamination specifically implies that a substance has become impure or dangerous due to a foreign additive.
Infection refers to the biological invasion of a living host by pathogens, whereas contamination refers to the presence of those pathogens on surfaces or in substances.
使用说明
Use 'contamination' when discussing scientific samples, food safety, or environmental issues where a specific substance has made something else impure. It is often an uncountable noun.
常见错误
Learners often use 'contaminate' as a noun; remember that 'contamination' is the noun form. Also, do not confuse it with 'contagion', which refers to the spread of disease.
记忆技巧
Think of 'CON-TAM-ination' as 'Container Tampering'—someone tampered with the container and made the contents dirty.
词源
Derived from the Latin 'contaminatio', meaning 'defilement' or 'corruption' through touch or contact.
语法模式
文化背景
In modern society, this word is frequently seen in 'boil water' advisories or food recall news regarding E. coli or Salmonella.
快速测验
The laboratory had to discard the results because of accidental _______ of the DNA samples.
正确！
正确答案是： contamination
相关词汇
相关词
complement
A2A thing that completes or brings to perfection something else. In grammar, it refers to a word or phrase that follows a verb and provides more information about the subject or object.
compound
A2Describes something that is made of two or more separate parts or elements joined together. It is often used to talk about words, sentences, or chemical substances that have multiple components.
conceive
A2To form an idea, plan, or concept in the mind. It is also the medical term used to describe when a woman becomes pregnant.
confer
A2To discuss something with other people in order to reach a decision or exchange ideas. It can also mean to officially give an honor, title, or degree to someone.
conform
A2To behave according to rules, standards, or what is expected by a group of people. It means to fit in or act in a way that matches others.
consecutive
A2Following one after another in a continuous series without any breaks. It describes things that happen in a logical order, like numbers (1, 2, 3) or days (Monday, Tuesday, Wednesday).
consistency
A2Consistency is the quality of always acting or behaving in the same way. it also describes how thick or smooth a liquid or substance is.
disclude
B1Describing a state where someone or something is left out, omitted, or not allowed to participate in a group or activity. It refers to the condition of being kept apart from a whole or a set.
antiformous
B1Describes a shape or structure that is curved or folded upwards like an arch. It is most often used in geology and geometry to describe a convex surface.
interspect
B1Describing a person who is thoughtful and focused on their own internal thoughts and feelings. It refers to the act of looking inward to examine one's own emotions and motives rather than focusing on external things.
评论 (0)
登录后评论免费开始学习语言
免费开始学习