chemical
noun [ C ] uk/ˈkem.ɪ.kəl/ us/ˈkem.ɪ.kəl/
B2 化学品；化学制品
any basic substance that is used in or produced by a reaction involving changes to atoms or molecules
The government has pledged to reduce the amount of chemicals used in food production. 政府承诺减少食品生产中化学制品的用量。
Each year, factories release millions of tons of toxic (= poisonous) chemicals into the atmosphere. 每年，工厂将数百万吨的有毒化学物品排放到大气中。
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- They use special chemicals to accelerate the growth of crops.
- Organic chemicals are used in the manufacture of plastics, fibres, solvents and paints.
- The body produces chemicals that are natural painkillers.
- Toxic chemicals continue to be dumped in the North Sea.
- Many chemicals have a damaging effect on the environment.
chemical
adjective uk/ˈkem.ɪ.kəl/ us/ˈkem.ɪ.kəl/
B2 化学的；化学制品的
relating to chemicals
The chemical industry produces such things as petrochemicals, drugs, and rubber. 化学工业生产诸如石化产品、药品、橡胶之类的东西。
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- Sodium chloride is the chemical name for common salt.
- All chemical weapons facilities will be deactivated.
- Estimates of the amount of money needed to decontaminate the heavily polluted chemical installations vary.
- We had to learn chemical formulae at school, but I can only remember H2O for water.
- The chemical properties of coal are still incompletely understood.