这次穿越大半个地球的驾驶实验有助于提高道路安全和燃料利用率的研究。
The project is meant to be a step toward improving road safety and fuel efficiency.
这样她也可以就近参与到研究中去，不必再像从前，隔着大半个地球，用卫星联络。
Thus she can also participate in to go in the research contiguous, need not be like previously anew and cross greater half the Earth and adjoin with the satellite.
她的足迹穿越了大半个地球，加尔各答、也门、伦敦、墨尔本、纽约，甚至包括中国。
Her footprints covered more than half of the earth-calcutta, Yemen, London, Melbourne, New York, even China.
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