

この家は日本の木材で建てられています。
木材の値段が去年より上がりました。
この机にはどんな木材を使っていますか。
"木材" is in the lesson "Plants" (Level 29), 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.