还要注意的是，与左栏中的每个符号相对应的是右栏中同一颜色的一个小方框。
Also notice that corresponding to each symbol in the left column is a small box in the same color in the right column.
因为没有导入Vector类型，所以左侧空白上将有一个符号，是一个包含“X”和黄色电灯泡的红色方框。(参见图4。)
Since you haven't imported the Vector type, there will be a symbol in the left margin, a red box with an "x" combined with a yellow light bulb, as shown in Figure 4.
如果没有将打印机的字体更新为包括欧元符号，则将打印方框来代替欧元符号。
If fonts for your printer are not updated to include the Euro, a box will be printed instead of the Euro symbol.
用有意义的符号：箭头、点、方框、表格、图标等其它视觉笔记往往是联系和回忆关键概念的极好方法。
Utilize symbols with meanings; symbols like arrows, dots, boxes, diagrams, charts, and other visual notes are often great ways to associate and remember key concepts.
同时他也使用了方框打钩的小图标而不是传统的项目符号。
He also USES check boxes instead of more traditional bullets.
同时他也使用了方框打钩的小图标而不是传统的项目符号。
He also USES check boxes instead of more traditional bullets.
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