Icon should be to capture the user's attention and guide them on the new features.
图标应该捕捉用户的注意力,并引导他们到新的功能上。
Reducing the pace of progress on course content, and emphasis on the expansion on basic formula and the application guide are also the features of new plan.
减小课程内容的进展梯度、重视基本公式的扩展及其对应用指导也是新方案的特点。
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