纹丝不动

wú fēng chù liǔ tiáo wén sī bù dòng

无风处，柳条纹丝不动。

There wasn't a breath of wind and the willow twigs were perfectly still.

wén sī bù dòng pā zài dì shang

纹丝不动趴在地上

lie perfectly still/motionless on one's stomach on the ground

tā shǐ jìn quán lì dàn shí tou réng wén sī bù dòng

她使尽全力，但石头仍纹丝不动。

She pushed to the limit of her strength, but she could not budge the rock.

kōng qì níng zhì yī qiè wén sī bù dòng

空气凝滞，一切纹丝不动。

Nothing moved in the still air.

tā tuī le mén dàn mén wén sī bù dòng

她推了门，但门纹丝不动。

She pushed at the door but it wouldn't budge.