motionless

The deer stood perfectly motionless in the woods, hoping the hunter wouldn't see it.

(Chinese) 那只鹿在树林里完全一动不动地站着，希望猎人不会发现它。

The surface of the mountain lake was so motionless that it looked like a giant mirror.

(Chinese) 高山湖泊的湖面如此平静，看起来就像一面巨大的镜子。