0 新型コロナ禍がもたらす経済的現実（3/13まで）と必要な政策/Economic reality brought by Covid-19(by 13. March) and measures needed 3月 17, 2020
0 コロラド州2,000㎞走破の弾丸トリップ！③《神秘のCliff Palaceとアメリカの大地の成り立ち》/Bullet trip of 2,000km drive in Colorado!③《Mysterious Cliff Palace and how American landscape was made》 10月 7, 2019
