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blackboard

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He stood up to get a better view of the blackboard.(他站了起来，以便能更清楚地看黑板。)
He wrote the title on the blackboard, then copied out the text, sentence by sentence.(他把题目写在黑板上，然后一句一句地抄写了整篇课文。)
She's always volunteering to clean the blackboard, the teacher's chair and desk.(她总是主动帮忙擦黑板、擦老师的椅子和桌子。)
He drew a trunk on the blackboard.(他在黑板上画了一个树干。)
If you write on the blackboard, rub it off at the end of the lesson.(如果你在黑板上写字，下课时要擦掉。)
There is a teacher's desk and a blackboard.(那里有一个老师的课桌和一块黑板。)
Are you remembering what it is used for, or the sound it makes when the teacher writes on the blackboard?(你记得它的用途或者当老师在黑板上写字时它发出的声音吗？)
He chalked the message on the blackboard.(他用粉笔把这条消息写在黑板上。)
Be sure to include in your notes information that your teacher repeats or writes on the blackboard.(一定要在你的笔记中包含老师重复或写在黑板上的信息。)
Most students would copy what their teacher wrote on the blackboard onto their notebook.(大多数学生都会把老师在黑板上写的东西抄到笔记本上。)

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