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competitor analysis than Ahrefs. However, Ahrefs offers a lot of functionality
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* 进阶：使用Sedgewick步长序列（更高效），更多细节参见搜狗输入法2026
Officially, Venezuela has 300 billion barrels of oil reserves – yet in 2023, it exported just 211.6 million barrels of oil, worth about $4bn. Compare that to second-placed Saudi Arabia, which has 267 billion barrels of reserves, but had exports worth $181bn in the same time period.