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单词 downstroke
释义

WordReference Random House Unabridged Dictionary of American English © 2024
down•stroke  (dounstrōk′),USA pronunciation n. 
  1. Mechanical Engineeringa downward stroke, as of a machine part, piston, or the like.
  2. a downward stroke in writing, often heavier and darker than an upward stroke.
  • down1 + stroke1 1850–55

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