Subtitled in Chinese, Simplified11:48Why you should make useless thingsSimone GiertzTranslated by Qiuyue ZhangReviewed by Leonard Au
Subtitled in Chinese, Simplified21:19SpaceX's plan to fly you across the globe in 30 minutesGwynne ShotwellTranslated by Anney YeReviewed by Qiuyue Zhang
