In old petroleum contracts, it's often not clear who owns the gas and therefore who can utilize it.

老的石油合同往往没有确定谁拥有天然气，以及谁因此可以使用它。

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Therefore, in human resources management can not have a clear plan, can only go one step further and look forward.

因此在人力资源治理方面也不可能有明确的规划，只能是走一步，看一步。

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Therefore, like other animals can not live like people must have a clear purpose and goal.

所以人不能像其它动物一样浑浑噩噩地活着，人的行动必须有明确的目的和奋斗的目标。

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"These are new elections and therefore the rules may not be so clear as they might be, so I think it wants ruling on for the future and I will be taking it up with the Electoral Commission and the Home Office, " the MP said.

BBC: Conflict fears over PCC candidate Nicky Williams

It is now clear that it was not ethanol that drove up the price of grain, and therefore the price of food.

CENTERFORSECURITYPOLICY: Fact vs. fiction on food vs. fuel

Denmark has said it is not clear now whether the treaty on the table is the definitive text, and that it is therefore unfair to ask people to vote on it.

BBC: NEWS | Europe | Treaty woes thwart EU ambitions