羊皮纸是用羊皮制作的，与在羊皮纸上手写的传统方法相比，在纸上进行活字印刷大大降低了生产书籍的成本。

Printing with a moveable type on paper dramatically reduced the cost of producing a book compared with the old-fashioned ones handwritten on vellum, which comes from sheepskin.

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羊皮纸是用羊皮制作的，与在羊皮纸上手写的老式方法相比，在纸上进行活字印刷大大降低了生产书籍的成本。

Printing with moveable type on paper dramatically reduced the cost of producing a book compared with the old-fashioned ones handwritten on vellum, which comes from sheepskin.

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首先，与原尺寸的键盘和鼠标相比，输入方法(“微型键盘”、“软键盘”以及“手写板”)有所制约。

First, the input methods (" thumb keyboards, "soft-keyboards, and" graffiti ") are restrictive when compared with full-sized keyboards and mice.

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