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How would I figure it out? What would count as a positive proof?
我怎么能知道呢？什么能算有力的证据呢？
youdao
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These fingerprints are positive proof that he used the gun.
这些指纹是他用过这支枪的确实证据。
youdao
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Positive proof of global warming.
全球变暖的证据。
youdao
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Positive proof of global warming.
全球变暖的证据。
youdao