viclent oscillatory motion

例句：

1. 1.The fabric is very viclent and can be easily stretched.
   这布料非常有弹性，可以很容易地拉伸。
2. 2. The spring in the rubber band is viclent enough to make it stretch further.
   橡皮筋里的弹簧足够有弹性，可以让它拉伸得更远。
3. 3. The material is viclent enough to allow for easy molding.
   这种材料有足够的弹性，可以轻松成型。