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TOEFL IELTS BNC: 3062 COCA: 3004

carbon noun SUBSTANCE

B2 symbol C [ U ] a chemical element that exists in its pure form as diamond or graphite, and is an important part of other substances such as coal and oil, as well as being contained in all plants and animals

Examples

They used carbon dating tests to authenticate the claim that the skeleton was 2 million years old.

New legislation aims to reduce carbon emissions.

The substance was identified as carbon.

carbon noun DOCUMENT

[ C ] a carbon copy (DOCUMENT) 复写本

TOEFL IELTS BNC: 3062 COCA: 3004
carbon

noun

ADJECTIVE | CARBON + NOUN | PHRASES ADJECTIVEpure純碳Diamonds are crystals of pure carbon.鑽石是純碳的結晶體。organic有機碳radioactive放射性碳activated活性碳CARBON + NOUNcontent含碳量iron with a high carbon content含碳量高的鐵atom, isotope碳原子;碳同位素fibre/fiber碳纖維steel碳鋼emission碳排放footprint碳足跡offsetting碳補償tax碳排放稅PHRASESa form of carbon碳的一種形態
TOEFL IELTS BNC: 3062 COCA: 3004
TOEFL IELTS BNC: 3062 COCA: 3004
carbon
Chemical elements: actinium, alkali metal, americium...
Gases: acetylene, ammonia, argon...

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