Is there any way to replace the chinese apps with other apps as I dont know chinese
yes, download
SuperSU, and copy it to /system/apps with a
root browser, fix permission, remove chinese app, reboot
if you install SuperSu from play store it will be something like /data/apps/eu.chainfire.supersu.apk
you can try using it there, but you need to move it to /system before you remove chinese app
there are several root browser/explorer/file manager that will work but it needs to be one with root access options
the chinese app should be in /system/apps not sure of name.
Fixing permissions: Looks like
Read Write Execute
Owner:................X .......... X............ _
Group:.................X .......... _ ......... _
Others:................X .......... _ ......... _
RW-R--R-- 0644
This should correct setting, but compare to other system apks.