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。