根が深い・・・(続)ｗ＾＾

https://www.youtube.com/watch?v=fNokIddXdP0

https://www.youtube.com/watch?v=AK5tBwkt_B0

https://www.youtube.com/watch?v=BvvjbrW_DuI

https://www.youtube.com/watch?v=GyXFLff525o

えっと・・・↓これは勉強になるね＾＾

https://www.youtube.com/watch?v=aFgyNa7KXDg