Yet improvements in energy efficiency mean dependence on oil is not what it once was.
由于能源效率的提高，目前对石油的依赖性没有以前大了。
What I mean is that we should improve our efficiency.
我知道。我的意思是我们必须提高效率。
What I mean is that we should improve our efficiency .
我的意思是我们必须提高效率。
What I mean is that we should improve our efficiency.
我的意思是我们必须提高效率。
What I mean is that we should amend our efficiency.
我的意思是我们必须提高效率。
What I mean is that we should amend our efficiency.
我的意思是我们必须提高效率。
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