

道に迷ったので、警察官に駅への行き方を聞きました。
パスポートをなくしたら、すぐ警察官に知らせてください。
観光地には警察官が多くて、安心でした。
"けいさつかん(警察官)" is in the lesson "Vacation" (Level 33), along with 13 other useful words. LinDuo has 180 topic lessons like this one, 2,379 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.