You see, hummingbirds are not hypersonic, but they are maneuverable.

你知道，蜂鸟不是特超音速。但是操纵性很好。

You can't swim fast, but your narrow build makes you maneuverable.

你游不快，但是狭型使你更加灵活。

Isn't that a very expensive solution for a small maneuverable flying object?

这对一个可操纵小型飞物来说不是个很昂贵方案？

Flying squirrels stretch the skin between their front and back legs to create a maneuverable wing.

鼯鼠将前后肢之间伸展开来就成了易操作翅膀。

In a panic that the two men cut their fishing lines and dropped everything they catch and most of their gear overboard to make themselves more maneuverable.

由于惊慌失措，这两个人切断了鱼线，把捕获所有东西和大部分装备都扔到了海里，以使自己更容易操作船只。

And so if we wanted to fly in this room or places where humans can't go, small enough and maneuverable enough we'd need an aircraft to do so.

所以，如果我们想在这个房间里或者人类无法到达地方飞。我们就需要飞机。积小，操作性强方可达到此要求。