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blackboards
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n.

  • 柯林斯高阶英汉双解学习词典

  • 词典例句

1. N-COUNT 黑板 A blackboard is a dark-coloured board that you can write on with chalk. Blackboards are often used by teachers in the classroom. 
in AM, use 美国英语用 chalkboard
1. New blackboards have been fitted up in all the classrooms.
教室里都安装上了新黑板。

来自《简明英汉词典》