To deduct home expense allocated to your business,you,as a self-employed person,

must be able to prove that you use the home area exclusively and on a regular basis

as a place of business.

還有這一句是什麼意思呢？

Just as railroads and telegraphs in the mid-19th century made
copyright and patent theft commercially important,so the
Internent and associated information technologies
redefined the market for inventions.

To deduct home expense allocated to your business,you,as a self-employed person,
must be able to prove that you use the home area exclusively and on a regular basis
as a place of business.
減少家中支出而分配到你的事業上，你，做為一個僱用自己的人，必須證明你專注地和經常地使用家中領域為一個做生意的地方。
Just as railroads and telegraphs in the mid-19th century made
copyright and patent theft commercially important,so the
Internent and associated information technologies
redefined the market for inventions.
十九世紀中期，當鐵路和電報剛剛說明了著作權和專利的仿冒盜取是商業上重要的，所以網際網路和其有關的資訊技術為發明重新定義了它的市場。

PS.讀英文要避免翻譯，直接讀懂意思就行了，因為翻譯起來很扭捏的啦