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kind; sort; type
equal; match; peer
この技術は他に類いのない画期的なものだ。
This technology is groundbreaking, with nothing else of its kind.
歴史上この類いの事件は繰り返されてきた。
Events of this kind have recurred throughout history.
彼の才能は同世代に類いを見ないものだ。
His talent is unparalleled among his generation.