holystone

英 ['həʊlɪstəʊn] 美 ['holɪston]
  • n. 甲板磨石
  • vi. 用甲板磨石磨
  • vt. 用甲板磨石磨
holystone
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英语词源

holystone (n.)
soft sandstone used to scrub decks of sailing ships, 1777, despite the spelling, so called perhaps because it is full of holes. As a verb, by 1828.