Smallest Flying Robot 会飞的机器昆虫
2019-09-10
阅读(快乐英语高年级) 2019年8期
This is Robobee. It is not a bee. It is the smallest flying robot in the world. It’s as big as a 1-jiao coin（硬幣）.
2019-09-10
This is Robobee. It is not a bee. It is the smallest flying robot in the world. It’s as big as a 1-jiao coin（硬幣）.
