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to pass an examination
He passed the difficult exam.
the Tertiary period
The Tertiary period was a very important time in the history of the Earth.
vitamin B12
Vitamin B12 is an important nutrient for maintaining the health of the nervous system.
Synonym of リボフラビン (ribofurabin, “riboflavin”); vitamin B2
Vitamin B2 is an important nutrient for maintaining healthy skin and vision.
Synonym of チアミン (chiamin, “thiamine”); vitamin B1
Vitamin B1 plays an important role in energy production.
vitamin B6
Vitamin B6 is an important nutrient for maintaining a healthy nervous system.
hepatitis B
It was confirmed that he was infected with hepatitis B.
radioactive element
Radioactive elements are produced in nature and scientific experiments.
(mineralogy) ulexite
This mineral is called ulexite and has special optical properties.
(phonetics) International Phonetic Alphabet
The International Phonetic Alphabet is an essential tool for linguistic research.
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