Helicopters are amazing machines. They can take off and land vertically, hover over an area, and fly forward, backward, and laterally. This new nonfiction 8x8 is full of fascinating facts and photographs of these incredible choppers.
5 歲以下
評分和評論
5.0
2則評論
5
4
3
2
1
關於作者
Chelsea Confalone has a PhD in biochemistry from UCLA, and Nick Confalone is a writer for film and television. They live in Los Angeles.