

東京は交通が便利です。
この町は交通が不便ですか。
交通ルールを守りましょう。
"こうつう(交通)" is in the lesson "Information" (Level 42), along with 11 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.