how to hide the owner name and group name in the dired list?

[Liu Haixiao]

when I use C-x C-f, it will open a dir and show the file list, first col is drwxr-xr-x, 3rd col is file  owner name and group name, I don't want these, because the file name is in the end and hardly cannot be see, please tell me how to hide the useless information.

I have tried the Dired List Switch, I must use the -l option, this way is dead.

thanks.