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dragon
The Brachiosaurus was a very large dinosaur.
a futile endeavor, a brave but useless attempt
His efforts were like a mantis trying to stop a chariot, he couldn't achieve any results.
層状含銅硫化鉄鉱鉱床: bedded cupriferous iron sulphide deposit
He is researching on the pathogenesis and treatment of early-onset diabetes.
bedded cupriferous iron sulphide deposit
This area is rich in bedded cupriferous iron sulphide deposits.
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DiQt（ディクト）
無料
★★★★★★★★★★
