Word · CEFR A2 · Frequency #4241
Fully loadedatom
原子
核心释义
the smallest unit of a chemical element, made of a nucleus surrounded by electrons, that still has the properties of that element
- 1.
保持化学元素性质的最小物质单位,现已知由原子核及绕核电子组成。
The smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons.
- 2.
(物理和化学)具有元素化学性质的最小组成部分
(physics and chemistry) the smallest component of an element having the chemical properties of the element
- 3.
希腊哲学家设想的终极且不可分割的物质粒子。
A hypothetical particle posited by Greek philosophers as an ultimate and indivisible component of matter.
- 4.
(非专业用法)极小的一片
(nontechnical usage) a tiny piece of anything
- 5.
某物的最小不可分割的组成部分或单元。
The smallest, indivisible constituent part or unit of something.
- 6.
逻辑原子论中不可再分解的基本事实。
In logical atomism, a fundamental fact that cannot be further broken down.
- 7.
最小组成部分;基本单元;微粒;小颗粒;一点儿;微量;原子事实;标量值;单个数字或符号
用法In use
In chemistry class, we learned that an atom is the smallest unit of an element.
用法提示:atom 作名词,指元素中保持其化学性质的最小单位。
A water molecule contains two hydrogen atoms and one oxygen atom.
用法提示:atoms 是 atom 的复数形式,作名词,指构成分子的原子。
The plastic model shows how electrons move around the nucleus of an atom.
用法提示:atom 作名词,指被展示内部结构的单个原子。
not an atom of sth
用于否定句中加强语气,表示“丝毫、一丁点儿都没有”,后接不可数名词。
There is not an atom of truth in what he said.
他所说的话里没有一丁点儿真实成分。
atoms of + 元素
指某种元素的原子时,常用复数 atoms of 后接元素名称。
相关词与表达Connections
搭配Collocations
- atom bomb
- 原子弹
- The development of the atom bomb changed warfare forever.原子弹的研制永远改变了战争方式。
- atom smasher
- 原子粉碎机
- Scientists use an atom smasher to study subatomic particles.科学家使用原子粉碎机来研究亚原子粒子。
- carbon atom
- 碳原子
- Each carbon atom can form four bonds with other atoms.每个碳原子可以与其他原子形成四个键。
- atom of truth
- 一丝真相
- Despite his lies, there was an atom of truth in his statement.尽管他在撒谎,他的陈述中还有一丝真相。
- atom of doubt
学习提示Learner notes
记忆技巧Memory Tip
记忆tip:联想"atom"发音像"阿汤姆",想象汤姆是一个微小的原子。
语境与语域Context & Register
“atom” 作为科技术语,多用于正式或学术语境,常见于物理、化学等专业领域。
发音与拼写Pronunciation & Spelling
这些单词拼写结尾都是'om',但重读元音不同,所以不押韵。'random'和'phantom'重读元音同为/æ/,但后续辅音不同,属于近似押韵。
高价值词汇High-value vocabulary
该词属于 Oxford 核心词汇,值得优先掌握常见搭配和句型。
用法优先级Usage priority
Collins 词频等级为 2,建议结合例句记忆,而不是只背中文释义。
一起学习词形Learn the forms together
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.