翻译是：blackboard writing design。解释：blackboard 英[ˈblækbɔ:d] 美[ˈblækbɔ:rd] n. 黑板; [例句]I turned around and wrote the title on the blackboard我转过身，在黑板上写下了题目。writing 英[ˈraɪtɪŋ] 美[ˈraɪtɪŋ] n. 写作; 文字; 文章; 笔迹; v. 写信; 写（ write的现在分词）; [例句]'It's from a notebook,' the sheriff said, 'And there's writing on it.'“这是在一个笔记本里找到的，”法官道，“上面还有文字。”design 英[dɪˈzaɪn] 美[dɪˈzaɪn] vt. 设计; 绘制; vt. 设计; 计划; 企图; 决意（做）; n. 设计; 图案; 结构; 计划; [例句]They wanted to design a machine that was both attractive and practical.他们想设计一种既美观又实用的机械。
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