Now straighten the leg, driving up with the opposite knee to hip height, so that you are balancing on one foot on the step.

支撑腿的另一侧腿屈膝90度。现将屈腿伸直，将对侧腿抬起，抬止髋的高度，保持单腿在做抬腿时的平衡。

youdao

But a lot of people had wondered whether Rove's fourth appearance here would be just a short one, one to straighten out a few things, maybe clear up just a couple of points.

NPR: Rove Concludes Testimony in CIA Leak Case