ansible become time out issue

hello,

come accross a problem,

there is this special hosts, i just cannot use ansible to become root user;

here is the ouput
[root@localhost ~]# ansible host1 -m raw -a ‘uname -a’ -u admin4A -b --become-method=su -k -K
SSH password:
SU password[defaults to SSH password]:
10.223.25.101 | FAILED | rc=0 >>
Timeout (32s) waiting for privilege escalation prompt:

then i login to the remote host, type su command, the prompt is chinese;
admin4A@vgopserver1:~> su -
口令:

i checked the ansible/playbook/play_context.py , the new prompt is not in the SU_PROMPT_LOCALIZATIONS list;

but it still didnot work after i put the “口令” into the SU_PROMPT_LOCALIZATIONS list;

any idea? did i modify the right python file ?

when i change the remote host lang to en.US, all things goes well; but i still need to solve this prompt problem in ansible ? any help