

自転車の車輪が少し曲がっているようです。
この台車は車輪が古くて、うまく回りません。
電車の車輪は定期的に交換する必要があります。
"しゃりん(車輪)" is in the lesson "Engineer" (Level 39), 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.