blackboard 的英语意思
blackboardblackboard /ˈblækbɔːd $ -bɔːrd/ noun [countable] 
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a board with a dark smooth surface, used in schools for writing on with chalk黑板；（学校用的）深色光滑书写板，用粉笔书写
查看全部语言翻译 a board with a dark smooth surface, used in schools for writing on with chalk黑板；（学校用的）深色光滑书写板，用粉笔书写