动词短语
中文翻译：保证
同义词：
['guarantee', 'assure', 'guarantee']
例句：
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1. I'll pack my bags and leave for Beijing tomorrow.
我明天会打包行李，去北京。
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2. He promised to deliver the goods on time.
他承诺按时交货。
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3. We can trust her to do what she says, as she always keeps her word.
我们相信她会说到做到，因为她总是守信用。