如何授予读写权限但不删除文件

Question

我想让用户能够在其他用户目录中创建、写入和读取文件，但没有在创建后删除文件的选项（粘性位在这里不起作用......）例如：

i have user : manager  with directory repository  
i have user : worker1 that need to write files to /manager/repository  can't delete the files 
i have user : worker2 that need to write files to /manager/repository  can't delete the files  
i have user : worker3 that need to write files to /manager/repository  can't delete the files 

但工人 1-2-3 创建后不能删除文件，只有经理和 root 可以删除工人 1 2 3 创建的文件。

我尝试了一些使用 stick bit 1 的 chown 和 chmod 技巧，但没有成功。