As a visual aid for his essay.
为他的论文提供视觉帮助。
What does each visual aid show?
每个视觉帮助显示什么内容？
Your slide show is just a visual aid.
你做的幻灯片只是观众视觉上的辅助。
Each dotted border represents a separate visual aid.
每个虚线边框都代表一个单独的视觉帮助。
The next section describes each visual aid in detail.
下面一节详细描述了每个视觉帮助。
This visual aid displays the margins and padding of every page element.
此视觉帮助会显示每个网页元素的边距与填充。
Great slides serve as a visual aid that reinforces the speaker's message.
出色的幻灯片为演说者提供视觉辅助，增强信息传递的效果。
Is the audience given enough time to understand the data on each visual aid?
是否已给听众足够的时间来理解你每次提供的数据？
Carefully consider the features of an effective visual aid after reviewing course materials.
复习完课程材料后，仔细思考“有效的视觉辅助教材有哪些特征”这一问题。
Carefully consider the features of an effective visual aid after reviewing course materials.
复习完课程材料后，仔细思考“有效的视觉辅助教材有哪些特征”这一问题。
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