If you do this the inside cover of your paper will be smooth, if you don't there is a chance there will be a line resulting from the edge of the manilla.
如果你做了这一步，封面内侧会比较平整。
If you do this the inside cover of your paper will be smooth, if you don't there is a chance there will be a line resulting from the edge of the manilla.
如果你做了这一步，封面内侧会比较平整。
应用推荐