You can use a colored gel pen to write dates, names, and other highlights about the activities in the pictures.

您可以使用彩色中性笔写日期，姓名，和其他突出的活动图片。

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Materials: rapidograph, silver gel pen, water color pencil, colored ink, paper.

媒材：针笔、银色中性笔、代针笔、水性彩色铅笔、彩色墨水。纸。

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