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来源:雅诚德英语网
When cave researchers go to explore them, they see and smell, the sulfuric acid and gases at work.
当洞穴研究人员进一步探索时,他们会在这个过程中发现硫酸,并闻到它的味道。
When cave researchers go to explore them, they see and smell, the sulfuric acid and gases at work.
当洞穴研究人员进一步探索时,他们会在这个过程中发现硫酸,并闻到它的味道。