Translate the technical language

Hello! We had some questions when editing the template:

      1) When I ask new styles in style.css styles do not change.

2) We can not translate the technical language of the site in particular “Book the
tour” here is an example on the site: http://opensky.amiroff.az/ru/tours/naxcivan-%D0%BA%D0%BE%D0%BF%D0%B8%D1%8F-%D0%BA%D0%BE%D0%BF%D0%B8%D1%8F-%D0%BA%D0%BE%D0%BF%D0%B8%D1%8F/
we were translating. Pot file it at this address \ wp-content \ plugins \ travel-booking \ languages but the translation does not work.