You change the oil in your car and put gas in the tank because you don't take your car's function for granted. It needs fuel and care to get going.

你给你的车换油加气是因为你重视它，车子需要油和维护才能走。

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As a fuel cell, it also needs fuel to run, in this case natural gas or another source of methane (such as landfill gas or biogas from anaerobic digesters).

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Under the proposal, Iran would get the fuel it needs for its research reactor in Tehran, but this would not be sufficiently enriched to make a bomb.

BBC: Iran delays reply on nuclear plan

But even more important, Hyundai thinks it can gain a strategic advantage by using its own metallurgists to develop exclusive lightweight, high-strength steel alloys it needs to satisfy higher fuel economy standards.

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