1·In late December 2013, a video created by him was his first experience to prevent electric motorcar from being stolen.
2013年12月底，他制作了一段视频，这是他第一次体验防止电动汽车被盗。
2·I change the battery for my old electric motorcar this afternoon.
今天下午，我去为我的旧电动车换了电池。