全球超过四分之一的石油和近五分之一的天然气来自近海，尽管近海钻探的成本是陆地钻探的六到七倍。

More than one-quarter of the world's oil and almost one-fifth of the world's natural gas come from offshore, even though offshore drilling is six to seven times more expensive than drilling on land.

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可再生能源只占全球主要能源消耗的一小部分，化石能源仍然占主导地位——煤炭和石油各占30%，天然气占25%。

Renewables account for only a small share of global primary energy consumption, which is still dominated by fossil fuels—30% each for coal and oil, 25% for natural gas.

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天然气汽车部件十分繁杂，需要经常保养。

Gas cars literally have hundreds of parts, often requiring frequent maintenance (保养).

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