动词
中文翻译：保证
同义词：
['guarantee', 'assure', 'ensure']
例句：
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1. We need to make sure the work is done correctly.
我们需要确保工作做正确。
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2. The company promised to deliver the goods on time.
公司承诺按时交付货物。
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3. He assured me that he would return my lost phone.
他向我保证他会归还我丢失的手机。