Photos, letters, clippings, and other family documents should be stored unfolded because folding and unfolding breaks paper along the fold lines.是什么意思_Photos, letters, clippings, and other family documents should be stored unfolded because folding and unfolding breaks paper along the fold lines.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句