Word · Frequency #2548
chemicals
化学品；化学物质
chemicals is the plural of chemical.
a substance that is used in or produced by a chemical process, such as an element or compound
- 1.
Any specific chemical element or chemical compound or alloy.
- 2.
material produced by or used in a reaction involving changes in atoms or molecules
由原子或分子变化反应产生或使用的物质
由原子或分子变化反应产生或使用的物质；化学药品
In use
The lab stores many chemicals in glass bottles.
This chemical is dangerous if you touch it.
They use chemicals to make plastic.
a chemical used in [process]
used in 是过去分词短语作后置定语，相当于 that is used in。
A chemical used in this test must be colorless.
用于这项试验的化学品必须是无色的。
a chemical with [property]
with 短语修饰 chemical，表示该化学品具有的特征。
A chemical with a strong smell should be handled carefully.
有强烈气味的化学品应小心处理。
a chemical that [clause]
that 引导定语从句限定 chemical；在口语中 that 有时可省略。
Connections
Collocations
- toxic chemicals
- 有毒化学品
- The factory released toxic chemicals into the river.那家工厂向河里排放了有毒化学品。
- industrial chemicals
- 工业化学品
- Workers at the plant handle many industrial chemicals every day.工厂的工人每天处理许多工业化学品。
- household chemicals
- 家用化学品
- Keep household chemicals out of the reach of children.把家用化学品放在儿童够不到的地方。
- agricultural chemicals
- 农用化学品
- Farmers use agricultural chemicals to protect their crops from pests.农民使用农用化学品来保护庄稼免受虫害。
- hazardous chemicals
- 危险化学品
- Trucks carrying hazardous chemicals must follow special safety rules.运载危险化学品的卡车必须遵守特殊的安全规定。
Learner notes
Memory Tip
chemical与chemistry同以chem开头，化学课实验瓶里装的都是chemical(化学品)。
Context & Register
语域：neutral 常见场景：实验室、工业生产、日常环保话题 该词在科技、工业和日常语境中均为中性，正式和非正式场合都适用；通常指参与化学反应的物质或化工产品。
Pronunciation & Spelling
这些词都与 chemical 一样以 -ical 结尾；本列表中 -ical 读作 /ɪkəl/。但它们重读音节中的元音和其后的辅音与 chemical 不同，因此并不与 chemical 真正押韵。political 的重音在第二音节，读音尤其容易按拼写想错。
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。
Usage priority
Collins 词频等级为 4，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
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 DICTIONARY_API_DEV, ECDICT, WIKTIONARY.