Author: Tokio X'press
韓国:サツマイモの80%~90%:日本の品種(動画): South Korea: 80% -90% of sweet potatoes: Japanese varieties: 韩国:80%-90%的红薯:日本品种
Cool Japan:三味線の音色、自動で五線譜に(動画): Cool Japan : Shamisen tone, automatically added to the staff notation: 日本的魅力:三味线,自动加入五线谱