气候变化和能源安全等问题已成为英国能源政策面临的极大挑战。

Climate change and energy security have become a tremendous challenge facing the UK energy policy.

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但其广泛应用仍面临极大的挑战性。

However, its wide application is still facing great challenges.

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但其广泛应用仍面临极大的挑战性。

However, its wide application is still facing great challenges.

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