[] an extra message that you add at the end of a letter after your signature（信末署名后的）附言，又及➡PS something extra that is added to sth after it has finished补充；后记；跋◆HR plans are unfortunately treated as a postscript to the business planning process.遗憾的是，人力资源计划被当成商业计划进程的一个附带文件。