The best in the world simplify complex subjects!kazu634 included in category 引用 2008-12-07 2008-12-07 57 words One minute Contents The best in the world simplify complex subjects; the most common make the simple complex.流鏑馬を５日でマスターできるか？ エキストリーム・ライフハックの簡単な３つのルール | Lifehacking.jp