HSK · Level 73
60 words
Chinese word
二氧化碳
Pronunciation
Pinyinèr yǎng huà tàn
Meaning
- nouncarbon dioxide
Example
植物吸收二氧化碳并释放氧气。zhí wù xī shōu èr yǎng huà tàn bìng shì fàng yǎng qì
Plants absorb carbon dioxide and release oxygen.
More examples
城市交通是二氧化碳排放的重要来源。chéng shì jiāo tōng shì èr yǎng huà tàn pái fàng de zhòng yào lái yuán
Urban transportation is an important source of carbon dioxide emissions.
Core concept
A trace atmospheric gas that connects plant life and human emissions while also affecting heat in the atmosphere.
Common phrases
排放二氧化碳pái fàng èr yǎng huà tàn
emit carbon dioxide
二氧化碳浓度èr yǎng huà tàn nóng dù
carbon dioxide concentration
Similar words
温室气体wēn shì qì tǐ: An atmospheric gas that holds in heat and can change the temperature of the Earth's surface.
碳排放tàn pái fàng: Carbon dioxide entering the atmosphere through activities such as burning fossil fuels.
温室效应wēn shì xiào yìng: The warming of Earth's surface as greenhouse gases make heat escape less easily.
二氧化碳浓度èr yǎng huà tàn nóng dù: A numerical measure of how much carbon dioxide the air contains.
Definition in Chinese
化学式为CO2的无色无味气体，由一个碳原子和两个氧原子构成，是温室气体之一，常与排放和大气浓度的讨论相关。huà xué shì wèi CO2 de wú sè wú wèi qì tǐ yóu yí gè tàn yuán zi hé liǎng gè yǎng yuán zi gòu chéng shì wēn shì qì tǐ zhī yī cháng yǔ pái fàng hé dà qì nóng dù de tǎo lùn xiāng guān
Word origin
二 (èr, "two") + 氧 (yǎng, "oxygen") + 化 (huà, "combining") + 碳 (tàn, "carbon") forms a compact chemical name for carbon joined with two oxygen atoms.
Usage tips
- In conversations about rooms, ventilation, or climate, this word belongs to everyday public vocabulary rather than only to laboratory talk.
Related words
- 二氧化碳排放èr yǎng huà tàn pái fàngcarbon dioxide emissionsnoun
- 二氧化碳浓度èr yǎng huà tàn nóng dùcarbon dioxide concentrationnoun