2 Awesome Life Hacks[自製腳踏車側邊防撞閃爍車燈,自製放電式點火器]

資料來源: https://www.youtube.com/watch?v=QAZySu7d8Bs&list=PLRVS8TSGNJ2CZ8JLCIrISNU0zgE3KJRFW&index=9