Travel in the developing world often involves appallingly long, uncomfortable bus journeys with speed-freak drivers, doubtful safety standards and aircon that is permanently set to 'Max'.

旅行在第三世界国家经常需要乘坐不舒服的、不安全的长途公车。公车的安全标准令人怀疑，空调被长期设定成最大。

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Still, when it comes down to it, it's doubtful that any business would pay for two web office suites at the same time just to get a complete set of features.

一言蔽之，很难想象有企业会为了获得完整的功能同时花钱买两套在线办公产品。

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Whether this will set a precedent for many other aggrieved groups is doubtful.

值得怀疑的是，这是否能成为其他权力受到不法侵害的民族可以遵循的先例呢？

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And with England regular Barry doubtful for the start of the tournament due to an ankle injury that is set to take at least four weeks to heal, Capello may look to add extra midfield cover to his squad.

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But whether the idea of Italy's debt being "mutualised" (or shared with German taxpayers) via some kind of shield provided by the IMF will appeal to the German parliament and German central bank - which are set against any such central-bank lending to any eurozone member state - seems highly doubtful.

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Doubtful about the accuracy of Mr. Hornsby's data, Mr. Berger checked it against the NFL data set and found Pro Football Focus was nearly perfect.

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