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来源：雅诚德英语网
Geothermal energy probably will not make large-scale contributions to the world energy budget until well into the twenty-first century, if ever.
在进入21世纪之前，地热能可能不会对世界能源预算作出大规模贡献。
Geothermal energy probably will not make large-scale contributions to the world energy budget until well into the twenty-first century, if ever.
在进入21世纪之前，地热能可能不会对世界能源预算作出大规模贡献。