Sit on your right heel with your left leg extended behind you; your left thigh is hovering over the floor.

坐在右脚脚后跟上左腿向后伸展; 左大腿悬浮向地板方向。

youdao

Oscar lay sprawled on the bed, his front and hind legs extended, his spine resting gently against the woman's leg.

奥斯卡就在老人的病床上，四条腿很夸张地伸展开去，脊背就轻轻靠在老太太腿上。

youdao

The quadriceps of the extended leg holds the knee straight.

股四头肌伸展直腿，使膝盖保持在伸直状态。

youdao

For that, he'll maintain one leg extended and slightly elevated behind his body, while squatting with an overhead weight.

WSJ: What's Your Workout? A Skater's Edge

He had stretched out his stockinged foot and dipped his big toe into the water, moving it slowly back and forth, his leg fully extended, for he could only just reach far enough to touch the surface.

NEWYORKER: While the Women Are Sleeping

While JetBlue is known for product innovation, like stylish in-flight TV and extended leg room, these innovations can be copied quickly by competitors.

FORBES: JetBlue Connects On Social Media