thickness n.厚度；稠密
【參】thicket ( n.灌木叢 )
【類】collapse:volume ＝ cool:temperature ＝ debilitate:strength ＝
attenuate:thickness
倒塌減少體積＝冷卻減少溫度＝使虛弱減少力量＝使薄減少厚度