検索内容:
decahedron
He is studying the shape of a decahedron.
seventy; 70
My grandfather is seventy years old.
ninety; 90
My grandfather is ninety years old.
eighty; 80
My grandfather is already eighty years old.
scores, dozens
He read scores of books.
forty; 40
My father is forty years old.
several tens
He has been living in this town for several decades.
a decagon
He drew a decagon shape.
billion, milliard
His company made a profit of one billion yen.
a Bengalese finch
My pet Bengalese finch is very cute.
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