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来源:雅诚德英语网
Over the years several other theories have been put forth, but none has been accepted by the scientific community.
多年来,又有人提出了一些其他的理论,但没有一个被科学界接受。
Over the years several other theories have been put forth, but none has been accepted by the scientific community.
多年来,又有人提出了一些其他的理论,但没有一个被科学界接受。