Instead of using wings, the coleopter employed a circular extension serving as the outer part of the jet engine while helping the aircraft achieve level flight, as well as vertical ascent and landing.
环翼机没有尾翼，而是采用一个延伸的圆形作为外部引擎，帮助飞机完成水平飞行和垂直起飞降落。
2
The easier level of the challenge requires flights of 90 seconds and a landing on a small, flat circular pad.
稍容易的初级挑战级别要求飞行90秒，然后在一个小型圆形平台上降落。
3
A change in height across the courtyard is highlighted by the flow of water along a channel that drops down from the planted level to the cobbled floor and then funnels into a circular pond.