diff --git a/app/workers/batch_generate_weather_arts_worker.rb b/app/workers/batch_generate_weather_arts_worker.rb
index d40b02d..3569bec 100644
--- a/app/workers/batch_generate_weather_arts_worker.rb
+++ b/app/workers/batch_generate_weather_arts_worker.rb
@@ -69,14 +69,15 @@ class BatchGenerateWeatherArtsWorker
   end
 
   def select_cities(recent_city, countries, limit)
-    cutoff_time = Time.current - GENERATION_INTERVAL
     Rails.logger.debug "Select Cities with limit: #{limit}, in #{countries.size} countries."
+    Rails.logger.debug "Skip Cities(count: #{recent_city.count}) list: #{recent_city.map(&:name).join(', ')}."
     # 第一阶段：筛选 active 城市, 排除最近生成过的城市
     active_cities = City.where.not(id: recent_city.pluck(:id))
                         .where(active: true, country_id: countries.map(&:id)).limit(limit).to_a
     selected = active_cities.first(limit)
     remaining = limit - selected.size
     Rails.logger.debug "Step1: Selected #{selected.size} cities with active city."
+    Rails.logger.debug "==recent selected city list: #{selected.map(&:name).join(', ')}."
 
     return selected if remaining <= 0
 
@@ -101,6 +102,7 @@ class BatchGenerateWeatherArtsWorker
         Rails.logger.debug "== No valid cities found in country: [#{country.name}]"
       end
     end
+    Rails.logger.debug "==recent selected city list: #{selected.map(&:name).join(', ')}."
     Rails.logger.debug "Finished selected #{selected.size} cities."
     selected
   end