He had crashed on Roon 60 years earlier, on a obsessive search for the source of the Roonstones.

60年前，在固执地寻找鲁恩石源头时，他迫降于鲁恩。

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The explorers pooled their resources and bought a boat by which they began to search for the source of the river.

探险家们凑钱买了条船，并凭此开始勋章河流的源头。

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In one of the houses where the gases had been detected, the chemists' search for the source had led them to the basement.

从一间被检测出这种气体的房间里，化学家搜寻到了位于地下室的源头。

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The search for Jeno is a source of both joy and pain for Bodner, but he is committed to finishing it.

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Bearing in mind that he recently revealed the development of a new "open source" search engine to compete for eyeballs with the mighty Google, he is going to need every ounce of optimism he can get.

BBC: NEWS | Technology | Wikipedia founder takes on Google

"Help us turn Defcad into the world's first unblockable, open-source search engine for 3D printable parts, " says Mr Wilson in the video posted on the website looking for funding.

BBC: 'Pirate Bay' for 3D printing launched