Peter also lay motionless, for he had gone to sleep.

彼得也躺着不动，因为他已经睡着了。

youdao

A crumpled figure lay motionless in the doorway.

门口躺着一个人，蜷缩成一团，一动不动。

《牛津词典》

She lay motionless where she was, oblivious to pain.

她一动不动地躺在原地，感觉不到疼痛。

《柯林斯英汉双解大词典》

For a moment, Haslet-Davis lay motionless amid a cloud of dust and mounting panic.

CNN: Boston bombings destroy dancer's foot, but not her spirit

Among them were a woman and child, both of whom lay motionless after hitting the ground.

BBC: NEWS | Europe | Eyewitness: Paris hotel blaze

Per the video, Barnes lay motionless for several minutes before leaving the game under his own power.

FORBES: Harrison Barnes Suffers Likely Concussion, Plays Anyway