鸟类通过社会互动来传播他们的歌曲，就像人类传播语言、舞蹈、烹饪以及其他文化要素一样。

Birds transmit their songs through social interactions, as humans do for languages, dances, cuisine and other cultural elements.

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色彩作为第一视觉语言，在多媒体课件制作中的作用是字体与图像等其他要素所无法替代的。

Color as the first visual language, can't be replaced by other essential factors, such as image, font etc in the produce of the multimedia lesson.

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