cs.rb

{:cs  => 
  { :i18n => { :pluralize => lambda { |n| n == 1 ? :one : (2..4).include?(n) ? :few : :other } },
  :datetime => { :distance_in_words => { :x_months => { :one => '1 měsíc', :few => "{{count}} měsíce",  :other => "{{count}} měsíců" } } } }
}