Writing by hand can be physically painful for pp who have it.

用手写字对于那些患有书写困难症的人来说在身体上是很痛苦的。

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The PP sample will be different from this one.

产前样将与这个样品不同。

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PP paper itself with gum, which can be directly back;

PP纸自身就有背胶，因而能够直接背板；

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PP paper itself with gum, which can be directly back;

PP纸自身就有背胶，因而能够直接背板；

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