/ˈməʊʃənlɪs/ adj.不动的；静止的
I lay there, motionless. I was really scared.我躺在那儿, 一动不动。我真是被吓惨了。
The birds can stand motionless, scrutinizing the water, for long periods.那些鸟儿能长时间一动不动地站着, 仔细盯着水面。
Her hands were motionless.她的手一动也不动。
to remain motionless保持静止
He remained quite motionless behind his desk.他动也不动地坐在桌后。
He has this ability of being able to remain as motionless as a statue for hours on end.他能连续几个小时一动不动, 像雕塑一样。