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doorsill

資料來源 : pyDict

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資料來源 : Webster's Revised Unabridged Dictionary (1913)

Doorsill \Door"sill`\, n.
   The sill or threshold of a door.

資料來源 : WordNet®

doorsill
     n : the sill of a door; a horizontal piece of wood or stone that
         forms the bottom of a doorway and offer support when
         passing through a doorway [syn: {doorstep}, {threshold}]
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