"独坐书斋手作妻"是一句诗句，意味着一个人独自坐在书斋中，创作与心爱的妻子有关的作品。
这句诗暗指作者对妻子的深深思念与追忆，以及他们之间特殊的情感。
通过独处在书斋中，作者将回忆和感情融入自己的创作中，打造出了一种内敛而深沉的表达方式。
这个诗句强调了作者对妻子的特殊感情，与众不同的情感源自于他们的共同经历和默契。
同时，"此情不与外人知"则表明这种情感只有作者和妻子能够真正理解，外界无法体会其中的真实含义和独特的情感交流。
换行：
"独坐书斋手作妻" is a line from a poem, which means that a person is sitting alone in a study, creating works related to his beloved wife. This sentence implies the deep nostalgia and reminiscence the author has for his wife, as well as their special bond. By being alone in the study, the author incorporates memories and emotions into his creations, creating a subtle and profound expression. The phrase emphasizes the author's unique affection for his wife, which derives from their shared experiences and understanding. At the same time, "此情不与外人知" signifies that this emotion can only be truly understood by the author and his wife, and the true meaning and unique emotional exchange cannot be grasped by outsiders.