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(paleontology) index fossil
Index fossils are an important clue to indicate a specific geological era.
(Buddhism) think on the power of Kannon
We should always remember the power of Kannon in difficult times.
sub-brown dwarf
A sub-brown dwarf is a celestial body between a planet and a brown dwarf.
(literally) know the other side and yourself, a hundred battles will not be perilous
This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.
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