Then, at the same place, bend it back to form a right-angle in the opposite direction.

然后，在同一个地方，把它弯回去形成反方向的直角。

youdao

Using just thumbs and fingers, bend it in the middle to form a right-angle.

只用拇指和手指，从中间把它弯曲成直角。

youdao

Drive your right knee towards your chest in a straight line and allow the knee to bend to a deeper Angle.

在一条直线中驾驶对于你的胸的你的权利膝而且让膝对一个较深的角度弯曲。

youdao

Then, at the same place, bend it back to form a right-angle in the opposite direction.

ECONOMIST: Aircraft fatigue

Using just thumbs and fingers, bend it in the middle to form a right-angle.

ECONOMIST: Aircraft fatigue