以下为句子列表:
英文: Until the new study, scientists had estimated the number of venomous fish species largely from medical records of fish-human encounters, not on biological or evolutionary species surveys.
中文: 在此项研究之前,科学家们很大程度上是从受到有毒鱼类攻击的人群的医学记录来估计有毒鱼类的数量,而不是通过生物学和遗传学的调查.
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