2014-08-19 JJYの備忘録 https://www.youtube.com/watch?v=d0uZRFBIwAc https://www.youtube.com/watch?v=Tl-2nbsPweE https://www.youtube.com/watch?v=IborlYKfrCA https://www.youtube.com/watch?v=VwlYuNuo5kI カッコイイ