形容词
中文翻译：令人信服的
同义词：
['convincing', 'convincing', 'persuasive']
例句：
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1. The presentationwas unconvincing; it failed to convince anyone.
这次演讲令人信服，但没有人被说服。
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2. The new product is unconvincing;it doesn't live up to its promises.
新产品令人信服，但未能兑现承诺。
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3.The arguments were unconvincing; they lacked credibility.
这些论点令人信服，但缺乏可信度。