在英文道歉信中，结束语起着至关重要的作用，它不仅能够表达诚挚的歉意，还能够展示对问题的积极解决态度以及对未来关系的期望。常见的结束语包括认可错误并表达诚挚歉意，如'We are very sorry for any inconvenience this may have caused you.'；说明已经采取纠正措施并希望获得谅解，如'We have taken steps to correct the situation and we hope this will resolve the issue to your satisfaction.'；感谢对方提出问题并承诺改进，this matter to our attention. We will use this opportunity to improve our services.'；以及表示希望保持联系并重建信任，如'If you have any further questions or concerns, please do not hesitate to contact us. We value your business and look forward to continuing our relationship with you.' 这些结束语可以根据实际情况灵活组合运用，以表达最恰当的歉意和诚意。