Place right foot forward and keep the left leg straight and the heel on the ground.

把右腿迈向前，保持左腿伸直，脚跟着地。

youdao

Then shift slightly to the right and swing your left leg straight back behind the torso.

然后身体稍稍向右，使左腿在身体后侧伸直。

youdao

Sit upright. Hold left foot off the floor with left leg straight. Point toes up and downward. Repeat 3 - 5 times. Repeat with other side.

坐直。伸直左腿；将左脚离地。让脚趾朝上、下方向。重复3-5次。换另一边重复。

youdao

The man is standing very straight, with his left leg slightly forward.

VOA: special.2010.08.04

The 31-year-old Spaniard, who missed much of the last two seasons after having surgery on his left leg, has now won three straight matches in Paris after losing the first two sets.

WSJ: Heard on the Field

Somerset lost their third wicket as Justin Langer was left in a state of furious disbelief when he swept straight to the man at backward square-leg, leaving 123 needed from 85 balls.

BBC: Somerset slide to crushing defeat