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shark
Have you ever seen a shark in the sea?
a shark (fish)
stairs used in emergencies
Please use the emergency stairs in case of a fire.
state of emergency (unusually difficult or dangerous situation)
Due to the earthquake, the city declared a state of emergency.
microorganism, microbe
Microorganisms are one of the basic forms of life.
protist
Protists are single-celled organisms that live in water.
biology
I love biology.
Kyūjitai form of 生物学: biology
I am majoring in biology at university.
biologist
He is a world-renowned biologist.
biosphere (part of Earth capable of supporting life)
Protecting the biosphere is important for the future of the Earth.
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