     user_polls_record: "Historia oddanych głosów"
 
   concepts:
-#    advanced_strings: "Advanced Strings"
+    advanced_strings: "Zaawansowane napisy"
     algorithms: "Algorytmy"
     arguments: "Argumenty"
     arithmetic: "Arytmetyka"

    user_profile: "Profil użytkownika"
    patch: "Łatka"
    patches: "Łatki"
#    patched_model: "Source Document"
#    model: "Model"
#    system: "System"
#    systems: "Systems"
#    component: "Component"
#    components: "Components"
    thang: "Obiekt"
    thangs: "Obiekty"
#    level_session: "Your Session"

#    sys_requirements_1: "A modern web browser. Newer versions of Chrome, Firefox, or Safari. Internet Explorer 9 or later."
#    sys_requirements_2: "CodeCombat is not supported on iPad yet."

  teachers_survey:
    title: "Ankieta dla nauczycieli"
#    must_be_logged: "You must be logged in first. Please create an account or log in from the menu above."
#    retrieving: "Retrieving information..."
#    being_reviewed_1: "Your application for a free trial subscription is being"
