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单词 blackboard
释义

blackboard

[ blak-bawrd, -bohrd ]
/ ˈblækˌbɔrd, -ˌboʊrd /
SEE SYNONYMS FOR blackboard ON THESAURUS.COM

noun

a sheet of smooth, hard material, especially dark slate, used in schools, lecture rooms, etc., for writing or drawing on with chalk.
Also called chalkboard.
Compare greenboard.

Origin of blackboard

First recorded in 1815–25; black + board

Words nearby blackboard

blackbird, blackbirder, blackbirding, black blizzard, Black Bloc, blackboard, blackboard jungle, Blackboard Learn, blackbody, blackbody radiation, black book
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for blackboard

British Dictionary definitions for blackboard

blackboard
/ (ˈblækˌbɔːd) /

noun

a hard or rigid surface made of a smooth usually dark substance, used for writing or drawing on with chalk, esp in teaching
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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更新时间:2024/11/10 23:20:01