Smallest Flying Robot 會飛的機器昆蟲
2019-09-10 07:22:44
閱讀(快樂英語高年級) 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）.
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）.
