The messages could not be moved or copied to folder '%S' because writing to folder failed. To gain disk space, from the File menu, first choose Empty Trash, and then choose Compact Folders, and then try again.
消息无法被移动或者复制到文件夹“%S”，因为写入文件夹失败。要获得额外的磁盘空间，从“文件”菜单，先选中“清空废件箱”，然后选择“压缩文件夹”，然后重试。