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2)

段々ぎざぎざ

Inflections of 段々
Common
Meaning
    1. ①
      notches; serration; indentation; jaggies (stair-step artifacts in computer images)
      ぎざぎざのかどが彼かれのズボンに引ひっかかって穴あなを空あけた。
      The jagged edge ripped a hole in his trousers.
    2. ②
      notched; serrated; jagged; corrugated; milled
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