MONTH of tramping around Europe has given your correspondent a chance to see how effective the new e-passports are at border crossings.

本刊记者漫游欧洲一月，借机了解了一下新的电子护照在边境口岸的使用效果。

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A MONTH of tramping around Europe has given your correspondent a chance to see how effective the new e-passports are at border crossings.

本刊记者漫游欧洲一月，借机了解了一下新的电子护照在边境口岸的使用效果。

youdao

One study saw participants asked to read an article offering ways to improve your mood, and follow one of the tips to see how effective it was.

一项研究让参与者阅读一篇关于如何改善情绪，然后让他们遵从其中一条建议，看这种建议的效果如何。

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"This gives us a chance to see how effective the new standards are, " he told CNN.

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The last stage would be to test the new antibiotics against malevolent microbes like anthrax to see how effective they are at combating diseases.

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Professor Cutler said much more research was needed to develop any vaccine and to see how effective it could be, and who should be receive it.

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