...absence 在他长期不在(某处)的期间 2 [U] lack; non-existence 缺乏; 不存在 *the absence of definite proof 缺乏确凿的证据. ..
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这项研究缺乏确凿的证据,因此,其结论值得怀疑。
The research lacks solid evidence, and therefore, its conclusions are doubtful.
他让大家注意,尚缺乏确凿的证据。
尽管有人声称古代在太空人,见过不明飞行物,然而却缺乏确凿的证据证明过去有其他文明世界的人来过地球。
Despite claims about ancient astronauts and unidentified flying objects, there is no firm evidence for past visitation of the Earth by other civilizations.
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