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c1330》 boteras(s)e OF bouterez flying buttress ← bouter to thrust, abut: ⇒but🔗🔉

c1330》 boteras(s)e OF bouterez flying buttress ← bouter to thrust, abut: ⇒butt

研究社新英和大辞典 ページ 176629 でのs単語。