Now, inhale in and on a swift exhale, bend both knees, lift that back leg.

现在吸气，然后迅速吐气，双膝弯曲，后腿抬起。

Interlace the fingertips, catch your left knee, lift and squeeze, lift and squeeze, rotate the left ankle.

指尖交叉，抓住你的左膝，抬起和挤压，旋转左脚踝。

With the knees. Lift with the knees!

用膝盖。 用膝盖顶！

A passage led to a large, low, almost pitch-dark room, where he found the baron on his knees, lifting the flap of a trap-door.

一条通道通向一间宽敞、低矮、几乎漆黑的房间，他发现男爵跪在那里，掀开活板门的活板门。