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来源：雅诚德英语网
There is plenty of traditional, high-grade geothermal resources that haven't been found yet.
还有大量的未被发现的传统、高等级地热资源。
There is plenty of traditional, high-grade geothermal resources that haven't been found yet.
还有大量的未被发现的传统、高等级地热资源。