堪称是……

堪称是…… means "can truly be called" and follows the frame 堪称是 A. Use it when you need to give a strong positive evaluation that something deserves the name A. This group is common in formal writing, reports, commentary, and analytical essays. Keep fixed parts such as 于, 为, 出, 着, 到, 之中, and 之上 complete. Pay attention to nuance: some patterns evaluate, some describe transformation, some show deep roots or constraints, some reveal evidence, and some mark importance or scope. Do not choose a pattern only because the translation looks close; first check the exact logical relation.