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a compound of [noun phrase]
The substance is a compound of hydrogen and oxygen.
这种物质是氢和氧的化合物。
混合物；复合物
先理解核心含义，再看它在真实句子里的用法。
混合物；复合物
A thing made by combining two or more different parts or elements; a mixture or composite.
The substance is a compound of hydrogen and oxygen.
这种物质是氢和氧的化合物。
关押工人、囚犯或士兵的围栏
An enclosure within which workers, prisoners, or soldiers are confined.
由多种事物组合而成的东西
Anything made by combining several things.
由两个或多个元素或部分结合而成的整体
a whole formed by a union of two or more elements or parts
围场
An enclosure for secure storage.
The medicine is a compound of several natural herbs.
这种药是由几种天然草药混合而成的化合物。
Water is a chemical compound composed of hydrogen and oxygen.
水是由氢和氧组成的化合物。
The embassy is located inside a secure compound surrounded by walls.
大使馆位于一个由围墙围起来的安保严密的院子里。
The substance is a compound of hydrogen and oxygen.
这种物质是氢和氧的化合物。
Organic compounds are essential for life.
有机化合物对生命至关重要。
The embassy is located inside a secure compound.
大使馆位于一个安全的院落内。
Not this
There are many compound in the lab.
Use this
There are many compounds in the lab.
compound是可数名词，复数形式应加-s，表示多个化合物。
Not this
Salt water is a compound.
Use this
Salt water is a mixture.
compound指通过化学键结合的物质，而salt water是物理混合，应使用mixture。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
化学化合物
Water is a chemical compound composed of hydrogen and oxygen.
水是由氢和氧组成的化学化合物。
有机化合物
Proteins are essential organic compounds for life.
蛋白质是生命必需的有机化合物。
复合词
The word 'notebook' is a compound word formed from 'note' and 'book'.
单词notebook是由note和book组成的复合词。
住宅大院
The embassy is located in a large residential compound.
大使馆位于一个大型住宅大院内。
军事大院
The soldiers guarded the military compound day and night.
士兵们日夜守卫着军事大院。
复利
Compound interest can significantly increase savings over time.
复利可以随着时间显著增加储蓄。
复利
The bank offers compound interest on savings accounts.
银行对储蓄账户提供复利。
复合骨折（开放性骨折）
He suffered a compound fracture in the car accident.
他在车祸中遭受了复合骨折。
Use compound naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想“com共同”+“pound存放”，不同元素共同存放形成化合物，或词语组合成复合词
通常用于化学和科学领域，属于中性偏正式的语域。在一般日常对话中较少使用，但在学术或专业讨论中很常见。
作为名词时，常与of连用表示组成成分。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.