名词
中文翻译：Unknown
同义词：
['guarantee', 'assurance']
例句：
-
3. 例句：1. The company vouchsafed us that they would deliver the goods on time.
公司向我们保证他们会按时交货。
-
2. He vouchsafed me that he would be there to help me with my project.
他向我保证他会帮助我完成这个项目。
-
3.She vouchsafed her promise to keep in touch with me regularly.
她向我保证会定期与我保持联系。