短语
中文翻译：未能交付
同义词：
['fail to perform', 'fail to meet expectations', 'be unable to deliver']
例句：
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1. The company failed to deliver on its promises.
该公司未能兑现承诺。
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2.The project was delayed due to the failure to deliver on time.
由于未能按时交付，该项目被推迟了。
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3. The team struggled to deliver on their promises, causing frustration among stakeholders.
团队未能兑现承诺，导致利益相关者感到沮丧。