     level: "Level"
 #    patch: "Patch"
 #    patches: "Patches"
-#    system: "System"
-#    systems: "Systems"
-#    component: "Component"
-#    components: "Components"
+    system: "Systeem"
+    systems: "Systemen"
+    component: "Component"
+    components: "Componenten"
     hero: "Held"
-#    campaigns: "Campaigns"
-
-#  concepts:
+    campaigns: "Campagnes"
+
+  concepts:
 #    advanced_css_rules: "Advanced CSS Rules"
 #    advanced_css_selectors: "Advanced CSS Selectors"
 #    advanced_html_attributes: "Advanced HTML Attributes"

#    course_not_started: "Student has not started this course yet."
#    no_code_yet: "Student has not written any code for this level yet."
#    open_ended_level: "Open-Ended Level"
#    partial_solution: "Partial Solution"
#    removing_course: "Removing course"
#    solution_arena_blurb: "Students are encouraged to solve arena levels creatively. The solution provided below meets the requirements of the arena level."
#    solution_challenge_blurb: "Students are encouraged to solve open-ended challenge levels creatively. One possible solution is displayed below."

#    cla_agree: "I AGREE"
#    owner_approve: "An owner will need to approve it before your changes will become visible."

  contact:
#    contact_us: "Contact CodeCombat"
#    welcome: "Good to hear from you! Use this form to send us email. "
#    forum_prefix: "For anything public, please try "
