The whole world could be on eight-hour shifts, starting and ending on the stroke everywhere, at least as far as business and community endeavors were concerned.

整个世界都可以实行八小时轮班制，各地都可能做到同时上班，同时下班，至少公务活动和社会活动可以如此。

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One prime reason is simply that we live in an increasingly "flat earth" world where business is a 24 hour a day proposition.

最首要的原因是我们所处的地球变得信息扁平化了，商务往来24小时不间断。

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Unless you're able to have an interrupted block of time for each project -- a worthwhile goal, but in our multitasking world, a tough one to achieve -- billing by the hour runs the risk of being an unethical business practice.

CNN: How to solve work-at-home ethical dilemmas