To translate Site Theme and AliPlugin’s interface, go to WP admin panel—> Settings—>General—>Site Language and choose the language.
To translate products’ descriptions and titles go to WP admin panel—> AliPlugin—> Configuration and choose the language.
To translate Pages and Categories set necessary language in AliPlugin’s configuration then go to translation section. There you’ll see chosen language in “translate to” field. Choose “translate from” language and use selective or bulk translation for Pages and Categories on your website.