This initial layer, formed of both cellulosic and noncellulosic materials, is called the primary wall.这头一层由纤维素和非纤维物质构成, 被称作初生壁.Used mainly for cellulosic - based textile printing and dyeing.主要用于纤维素类纺织品的印花和染色.Cellulosic b...
His remarks injected a note of levity into the proceedings.他的话将一丝轻率带入了议事过程中.Your levity is unseemly at this time.在这种场合,你的轻率举动是不得体的.At the time, Arnold had disapproved of such levity.那时候的阿诺德对这种轻浮行为很看不惯。...