How the word "じっせん（実線）" is translated into English
白い実線のところでは、車線変更しないでください。
その実線を越えて追い越したら、違反になりますよ。
交差点の手前は実線になっていることが多いです。
"じっせん（実線）" is in the lesson "Road" (Level 9), along with 14 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.
