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peak oil

noun
🔊/ˌpiːk ˈɔɪl/
🔊/ˌpiːk ˈɔɪl/
[uncountable]
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  1. the point in time when world oil production reaches its highest rate, after which it goes into permanent decline石油峰值（指世界石油生产达到峰值的时间点）