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1·The menu was on a blackboard.

菜单在黑板上。《柯林斯英汉双解大词典》

2·He chalked the message on the blackboard.

他用粉笔把这条消息写在黑板上。《柯林斯英汉双解大词典》

3·On a blackboard, he drew five concentric circles.

他在黑板上画出五个同心圆。《柯林斯英汉双解大词典》

4·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。《柯林斯英汉双解大词典》

5·I turned around and wrote the title on the blackboard.

我转过身将标题写在了黑板上。《柯林斯英汉双解大词典》

6·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。《牛津词典》

7·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。《柯林斯英汉双解大词典》

8·What is it? It is a blackboard.

这是什么？这是一块黑板。

9·Look at the blackboard, pupils.

同学们，请看黑板。

10·I'm cleaning the blackboard.

我正在擦黑板。

黑板

1·It was as long as the blackboard.

它和黑板一样长。

2·Here are some desks and a blackboard.

这有一些课桌和一个黑板。

3·The picture is hanging over the blackboard.

那张图挂在黑板的正上方。

4·The master sat throned in his great chair upon a raised platform, with his blackboard behind him.

老师像皇帝一样坐在高高的讲台上的大椅子上，身后是黑板。

5·Interactive whiteboard and its system convert the traditional blackboard lecture mode into electronic lecture mode.

交互式白板及其系统将传统的黑板课堂教学模式转化为电子课堂教学模式。

(1)blackboard erasern. 黑板擦