As the world's largest oil consumers, China and America have much to gain from cooperation in new and renewable energy, clean coal and energy efficiency.

作为世界上最大的石油消费国，中国和美国都会从清洁能源和可再生能源、清洁煤炭和能效方面的合作受益颇多。

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The long-term answer, Japanese bosses believe, is to move into clean technologies such as solar panels and electric-car batteries—new areas where Japanese firms are already strong.

日本公司的决策者相信，长期的解决之道在于转向清洁技术，如太阳能电池及电动车电池等日本公司已经具备优势的领域。

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To clean up any existing packages that are invalid as a result of this change, you can use the new function to find invalid packages on a database or schema level.

要清理由于这种更改而无效的任何现有包，可以使用这个新功能来找出数据库或架构级别上的无效包。

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In theory, it would be marvellous if errant Italian politicians or public figures were able to make a clean breast of past sins and promise to turn over a collective new leaf as part of a general clean-up.

ECONOMIST: Italy: Unseemly, unending | The

As more governments look to civilian nuclear power as a source of clean electricity, tighter controls and other new schemes are needed to help stop would-be cheats or terrorists from exploiting or stealing some of the proliferation-prone technologies and materials for bomb-building.

ECONOMIST: Getting to zero

The other says that whether we like it or not, the transition to renewables will take decades, and in the meantime, we need to use technology and new partnerships to make fracking as safe and clean as possible.

WSJ: Fracking coalition upsets both greens and drillers