在演讲的主体内容中，胡安只涉及了地震的基本力学，小心翼翼地避免了使用专业术语。
Throughout the body of the speech, Juan dealt only with the basic mechanics of the earthquakes, carefully avoid technical terms.
在演讲的主体内容中，胡安只涉及了地震的基本力学，小心翼翼地避免了使用专业术语。
Throughout the body of the speech, Juan dealt only with the basic mechanics of the earthquakes, carefully avoid technical terms.
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