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bar up

动词
  1. To fit (e.g. a window or door) with bars; to otherwise block or dam up.
  2. To imprison (someone); to chain up (someone). (dated, transitive)
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Then he flung open the window, and putting his knife through the crack in the shutters, he thrust the bar up and swung them open.
《The Memoirs of Sherlock Holmes》,第96页 · B2

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