How the word "けいかん（警官）" is translated into English
道に迷ったので、近くの警官に聞きました。
駅の前に警官が二人立っています。
どうして警官になろうと思ったんですか。
"けいかん（警官）" is in the lesson "Career" (Level 16), along with 17 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.
