straightedge

[strˈetˌɛdʒ] /ˈstrāt-ˌej How to pronounce straightedge (audio)/ (ame, mw)

straightedge — noun

1. a flat tool with one perfectly even side that you place against paper, wood, or

1.名詞B2
釋義

a flat tool with one perfectly even side that you place against paper, wood, or another surface to draw an exact line or check whether something is straight

例句

Layla held a metal straightedge against the paper before drawing the border.

hold a straightedge against + surface

Gabriel used a straightedge to see if the shelf edge was still straight.

use a straightedge to check if + clause

同義詞
  • ruler

    a more general tool that usually has measurement marks

  • yardstick

    a measuring stick of a fixed length, usually one yard

  • T-square

    a larger drafting tool with a crosspiece for drawing long horizontal lines

文法句型

use + a straightedge + to-infinitive

draw + noun + with + a straightedge

hold + a straightedge + against + noun

用法筆記

Often modified by a material or length word such as 'metal straightedge' or 'long straightedge'. Unlike an ordinary ruler, it usually guides or checks a line instead of measuring exact units.

常見錯誤

❌Use a straightedge to measure 10 centimetres.
✅Use a ruler to measure 10 centimetres.
💡a straightedge helps you draw or check a straight line, but it usually does not have measurement marks.