Rule No. 1 is for office use only.

第一条规则就是仅供办公使用。

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Windows grew to become the only operating system many people ever used, and the ability to use Microsoft Office is seen as an essential skill for working life in many parts of the world.

Windows成为很多人唯一使用过的操作系统，微软Office软件成为很多人工作中的必备技能。

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Put a "Please Use Other Door" sign on the entrance to your office building if it only has one entrance.

如果办公楼只有一个入口，在门上挂一块“请使用其他入口”标志。

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Taxpayers who have more than one qualified home office, i.e. in more than one home, may use the safe harbor method for only one home office space.

FORBES: Claiming A Home Office Deduction? It's Much Easier This Year, Here's How

Your work as an employee, but only if the use of the home office is for the convenience of your employer (think: hygiene issues).

FORBES: Deducting Your Home Office (Read: Couch) Just Got A Whole Lot Simpler

But as Mr Jones points out, he is not the only cabinet minister with an office nearby to use a ministerial car to travel to Downing Street.

BBC: Welsh Secretary says "Jones the Jag" row no big deal