1
a chemical compound
作为可数名词，常用不定冠词a/an修饰。
Water is a chemical compound composed of hydrogen and oxygen.
水是一种由氢和氧组成的化合物。
化合物
先理解核心含义，再看它在真实句子里的用法。
化合物
a substance formed by the chemical combination of two or more elements
Water is a chemical compound composed of hydrogen and oxygen.
水是一种由氢和氧组成的化合物。
由两种或多种化学元素按固定比例通过化学键结合而成的物质。
Any substance formed by the union of two or more chemical elements in a fixed ratio, the union being a chemical bond.
Water is a common chemical compound made of hydrogen and oxygen.
水是由氢和氧组成的常见化合物。
The lab stores each chemical compound in a clearly labeled bottle.
实验室把每种化合物都存放在贴有清晰标签的瓶子里。
Chemists study how a chemical compound reacts with other substances.
化学家研究化合物如何与其他物质反应。
作为可数名词，常用不定冠词a/an修饰。
Water is a chemical compound composed of hydrogen and oxygen.
水是一种由氢和氧组成的化合物。
复数形式表示泛指。
Many chemical compounds are used in the pharmaceutical industry.
许多化合物被用于制药工业。
The chemist synthesized a new chemical compound in the lab.
化学家在实验室合成了一种新化合物。
Not this
Water is chemical compound.
Use this
Water is a chemical compound.
“chemical compound”是可数名词，通常需要冠词或数量词。中文无冠词系统，学习者易遗漏，故加不定冠词“a”。
Not this
This is a compound chemical.
Use this
This is a chemical compound.
英语中复合名词的修饰语在前，中心词在后，而中文修饰语在后（如“化合物”），学习者易颠倒顺序，故应改为“chemical compound”。
Choose the next layer that will help you use chemical compound with more confidence.
Recommended next
Missing: Collocations
Complete this area with collocations.
Includes Context & register & Memory tip
Analyze the context and learn memory tricks to remember it.
More ways to explore
Includes Synonyms & Antonyms
Expand your vocabulary with synonyms and antonyms.
Includes Word components & Thematic vocabulary
Learn how to build related words using roots, prefixes, and thematic clusters.
Includes Idioms & Cultural references
Discover idioms, slang, and famous pop culture quotes.
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use chemical compound naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
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.