“I am sorry about the outcome and appreciate that you are disappointed with my decision. I encourage you to continue to support the journal, including submission of future manuscripts.
However, if you can improve manuscript significantly by carrying more experiment and providing more insightful discussions based on the reviewers' comments and suggestions, you may submit the revised version of manuscript as a new submission. In this case, please mention that this manuscript (along with the original manuscript number) has ever been submitted before in the cover letter and include the 'point-by-point response letter'. The same reviewers can review this manuscript again.
Thank you for giving us the opportunity to consider your work”