

毎日ジムで筋肉を鍛えています。
昨日の運動で全身の筋肉が痛いです。
筋肉をつけるには、何を食べたらいいですか。
"きんにく(筋肉)" is in the lesson "Body parts 1" (Level 2), 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.