It has original advantages in teaching the dynamic combination of Numbers and shapes and the promoting of image grasp.

它在数与形的动态结合和促进图像把握方面有独到的教学优势。

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And still deeper the meaning of that story of Narcissus, who because he could not grasp the tormenting, mild image he saw in the fountain, plunged into it and was drowned.

NPR: Excerpt: 'Moby-Dick'