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这件事本身表明，他们是有合作的诚意的。
This matter itself indicates that they have the sincerity for cooperation.
youdao
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这件事本身便表明，他们的合作是诚意的。
This event itself is an indication of their sincere wish to cooperate with us.
youdao
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这件事本身便表明，他们的合作是诚意的。
This event itself is an indication of their sincere wish to cooperate with us.
youdao