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chemical fiber
This shirt is made of chemical fiber.
chemical weapon
The use of chemical weapons is prohibited by international law.
biological chemistry
I am majoring in biochemistry at university.
inorganic chemistry
I am majoring in inorganic chemistry at university.
chemical engineering
My major is chemical engineering.
analytical chemistry
Analytical chemistry is a science that reveals the composition and structure of substances.
physical chemistry
I am majoring in physical chemistry at university.
chemical pollution
Chemical pollution has a serious impact on the health of the Earth.
(organic chemistry) an organic compound
The study of organic compounds is an important field in chemistry.
one, 1
I ate one apple.
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